I have been working on a LibreNMS install that is to become a Distributed Poller.
This monring I could access the device via WebUI.
Then all of a suddent the WebUI stopped working! No Doubt because I have done something!
I can still access via CLI. I have followed the Librenms.log file as I try to access via the WebGUI and I get the following output
#70 /opt/librenms/vendor/fruitcake/laravel-cors/src/HandleCors.php(37): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#71 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Fruitcake\Cors\HandleCors->handle(Object(Illuminate\Http\Request), Object(Closure))
#72 /opt/librenms/vendor/fideloper/proxy/src/TrustProxies.php(57): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#73 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Fideloper\Proxy\TrustProxies->handle(Object(Illuminate\Http\Request), Object(Closure))
#74 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#75 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(141): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#76 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(110): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter(Object(Illuminate\Http\Request))
#77 /opt/librenms/html/index.php(52): Illuminate\Foundation\Http\Kernel->handle(Object(Illuminate\Http\Request))
#78 {main}
“}
[2021-02-11 14:05:02] production.ERROR: Class ‘Memcached’ not found {“exception”:”[object] (Error(code: 0): Class ‘Memcached’ not found at /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/MemcachedConnector.php:69)
[stacktrace]
#0 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/MemcachedConnector.php(48): Illuminate\Cache\MemcachedConnector->createMemcachedInstance(NULL)
#1 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/MemcachedConnector.php(21): Illuminate\Cache\MemcachedConnector->getMemcached(NULL, Array, Array)
#2 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(174): Illuminate\Cache\MemcachedConnector->connect(Array, NULL, Array, Array)
#3 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(107): Illuminate\Cache\CacheManager->createMemcachedDriver(Array)
#4 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(82): Illuminate\Cache\CacheManager->resolve(‘memcached’)
#5 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(60): Illuminate\Cache\CacheManager->get(‘memcached’)
#6 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(406): Illuminate\Cache\CacheManager->store()
#7 /opt/librenms/vendor/laravel/framework/src/Illuminate/Support/Facades/Facade.php(261): Illuminate\Cache\CacheManager->__call(‘lock’, Array)
#8 /opt/librenms/discovery.php(33): Illuminate\Support\Facades\Facade::__callStatic(‘lock’, Array)
#9 {main}
“}
[2021-02-11 14:05:02] production.ERROR: Class ‘Memcached’ not found {“exception”:”[object] (Error(code: 0): Class ‘Memcached’ not found at /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/MemcachedConnector.php:69)
[stacktrace]
#0 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/MemcachedConnector.php(48): Illuminate\Cache\MemcachedConnector->createMemcachedInstance(NULL)
#1 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/MemcachedConnector.php(21): Illuminate\Cache\MemcachedConnector->getMemcached(NULL, Array, Array)
#2 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(174): Illuminate\Cache\MemcachedConnector->connect(Array, NULL, Array, Array)
#3 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(107): Illuminate\Cache\CacheManager->createMemcachedDriver(Array)
#4 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(82): Illuminate\Cache\CacheManager->resolve(‘memcached’)
#5 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(60): Illuminate\Cache\CacheManager->get(‘memcached’)
#6 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(406): Illuminate\Cache\CacheManager->store()
#7 /opt/librenms/vendor/laravel/framework/src/Illuminate/Support/Facades/Facade.php(261): Illuminate\Cache\CacheManager->__call(‘lock’, Array)
#8 /opt/librenms/alerts.php(41): Illuminate\Support\Facades\Facade::__callStatic(‘lock’, Array)
#9 {main}
“}
[2021-02-11 14:05:13] production.ERROR: Class ‘Memcached’ not found (View: /opt/librenms/resources/views/overview/default.blade.php) {“userId”:1,“exception”:”[object] (ErrorException(code: 0): Class ‘Memcached’ not found (View: /opt/librenms/resources/views/overview/default.blade.php) at /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/MemcachedConnector.php:69)
[stacktrace]
#0 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php(60): Illuminate\View\Engines\CompilerEngine->handleViewException(Object(Error), 1)
#1 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php(61): Illuminate\View\Engines\PhpEngine->evaluatePath(’/opt/librenms/s…’, Array)
#2 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/View.php(139): Illuminate\View\Engines\CompilerEngine->get(’/opt/librenms/r…’, Array)
#3 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/View.php(122): Illuminate\View\View->getContents()
#4 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/View.php(91): Illuminate\View\View->renderContents()
#5 /opt/librenms/vendor/laravel/framework/src/Illuminate/Http/Response.php(62): Illuminate\View\View->render()
#6 /opt/librenms/vendor/laravel/framework/src/Illuminate/Http/Response.php(34): Illuminate\Http\Response->setContent(Object(Illuminate\View\View))
#7 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(780): Illuminate\Http\Response->__construct(Object(Illuminate\View\View), 200, Array)
#8 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(752): Illuminate\Routing\Router::toResponse(Object(Illuminate\Http\Request), Object(Illuminate\View\View))
#9 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(692): Illuminate\Routing\Router->prepareResponse(Object(Illuminate\Http\Request), Object(Illuminate\View\View))
#10 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(128): Illuminate\Routing\Router->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#11 /opt/librenms/app/Http/Middleware/LoadUserPreferences.php(30): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#12 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): App\Http\Middleware\LoadUserPreferences->handle(Object(Illuminate\Http\Request), Object(Closure))
#13 /opt/librenms/app/Http/Middleware/VerifyTwoFactor.php(39): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#14 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): App\Http\Middleware\VerifyTwoFactor->handle(Object(Illuminate\Http\Request), Object(Closure))
#15 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php(41): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#16 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Routing\Middleware\SubstituteBindings->handle(Object(Illuminate\Http\Request), Object(Closure))
#17 /opt/librenms/vendor/laravel/framework/src/Illuminate/Auth/Middleware/Authenticate.php(44): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#18 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Auth\Middleware\Authenticate->handle(Object(Illuminate\Http\Request), Object(Closure))
#19 /opt/librenms/app/Http/Middleware/LegacyExternalAuth.php(42): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#20 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): App\Http\Middleware\LegacyExternalAuth->handle(Object(Illuminate\Http\Request), Object(Closure))
#21 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php(78): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#22 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\VerifyCsrfToken->handle(Object(Illuminate\Http\Request), Object(Closure))
#23 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#24 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\View\Middleware\ShareErrorsFromSession->handle(Object(Illuminate\Http\Request), Object(Closure))
#25 /opt/librenms/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(121): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#26 /opt/librenms/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(63): Illuminate\Session\Middleware\StartSession->handleStatefulRequest(Object(Illuminate\Http\Request), Object(Illuminate\Session\Store), Object(Closure))
#27 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Session\Middleware\StartSession->handle(Object(Illuminate\Http\Request), Object(Closure))
#28 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#29 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse->handle(Object(Illuminate\Http\Request), Object(Closure))
#30 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(67): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#31 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Cookie\Middleware\EncryptCookies->handle(Object(Illuminate\Http\Request), Object(Closure))
#32 /opt/librenms/app/Http/Middleware/CheckInstalled.php(61): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#33 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): App\Http\Middleware\CheckInstalled->handle(Object(Illuminate\Http\Request), Object(Closure))
#34 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#35 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(694): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#36 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(669): Illuminate\Routing\Router->runRouteWithinStack(Object(Illuminate\Routing\Route), Object(Illuminate\Http\Request))
#37 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(635): Illuminate\Routing\Router->runRoute(Object(Illuminate\Http\Request), Object(Illuminate\Routing\Route))
#38 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(624): Illuminate\Routing\Router->dispatchToRoute(Object(Illuminate\Http\Request))
#39 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(166): Illuminate\Routing\Router->dispatch(Object(Illuminate\Http\Request))
#40 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(128): Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http\{closure}(Object(Illuminate\Http\Request))
#41 /opt/librenms/vendor/darkghosthunter/larapoke/src/Http/Middleware/LarapokeGlobalMiddleware.php(20): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#42 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): DarkGhostHunter\Larapoke\Http\Middleware\LarapokeGlobalMiddleware->handle(Object(Illuminate\Http\Request), Object(Closure))
#43 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#44 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle(Object(Illuminate\Http\Request), Object(Closure))
#45 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#46 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle(Object(Illuminate\Http\Request), Object(Closure))
#47 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php(27): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#48 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\ValidatePostSize->handle(Object(Illuminate\Http\Request), Object(Closure))
#49 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(86): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#50 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance->handle(Object(Illuminate\Http\Request), Object(Closure))
#51 /opt/librenms/vendor/fruitcake/laravel-cors/src/HandleCors.php(37): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#52 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Fruitcake\Cors\HandleCors->handle(Object(Illuminate\Http\Request), Object(Closure))
#53 /opt/librenms/vendor/fideloper/proxy/src/TrustProxies.php(57): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#54 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Fideloper\Proxy\TrustProxies->handle(Object(Illuminate\Http\Request), Object(Closure))
#55 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#56 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(141): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#57 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(110): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter(Object(Illuminate\Http\Request))
#58 /opt/librenms/html/index.php(52): Illuminate\Foundation\Http\Kernel->handle(Object(Illuminate\Http\Request))
#59 {main}
[previous exception] [object] (Error(code: 0): Class ‘Memcached’ not found at /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/MemcachedConnector.php:69)
[stacktrace]
#0 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/MemcachedConnector.php(48): Illuminate\Cache\MemcachedConnector->createMemcachedInstance(NULL)
#1 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/MemcachedConnector.php(21): Illuminate\Cache\MemcachedConnector->getMemcached(NULL, Array, Array)
#2 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(174): Illuminate\Cache\MemcachedConnector->connect(Array, NULL, Array, Array)
#3 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(107): Illuminate\Cache\CacheManager->createMemcachedDriver(Array)
#4 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(82): Illuminate\Cache\CacheManager->resolve(‘memcached’)
#5 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(60): Illuminate\Cache\CacheManager->get(‘memcached’)
#6 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(406): Illuminate\Cache\CacheManager->store()
#7 /opt/librenms/vendor/laravel/framework/src/Illuminate/Support/Facades/Facade.php(261): Illuminate\Cache\CacheManager->__call(‘get’, Array)
#8 /opt/librenms/app/Checks.php(43): Illuminate\Support\Facades\Facade::__callStatic(‘get’, Array)
#9 /opt/librenms/app/Http/ViewComposers/LayoutComposer.php(52): App\Checks::postAuth()
#10 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/Concerns/ManagesEvents.php(124): App\Http\ViewComposers\LayoutComposer->compose(Object(Illuminate\View\View))
#11 /opt/librenms/vendor/laravel/framework/src/Illuminate/Events/Dispatcher.php(391): Illuminate\View\Factory->Illuminate\View\Concerns\{closure}(Object(Illuminate\View\View))
#12 /opt/librenms/vendor/laravel/framework/src/Illuminate/Events/Dispatcher.php(236): Illuminate\Events\Dispatcher->Illuminate\Events\{closure}(‘composing: layo…’, Array)
#13 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/Concerns/ManagesEvents.php(177): Illuminate\Events\Dispatcher->dispatch(‘composing: layo…’, Array)
#14 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/View.php(120): Illuminate\View\Factory->callComposer(Object(Illuminate\View\View))
#15 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/View.php(91): Illuminate\View\View->renderContents()
#16 /opt/librenms/storage/framework/views/50ee2654378519d5eefc3f998b7bd2a3b0824596.php(670): Illuminate\View\View->render()
#17 /opt/librenms/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php(107): require(’/opt/librenms/s…’)
#18 /opt/librenms/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php(108): Illuminate\Filesystem\Filesystem::Illuminate\Filesystem\{closure}()
#19 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php(58): Illuminate\Filesystem\Filesystem->getRequire(’/opt/librenms/s…’, Array)
#20 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php(61): Illuminate\View\Engines\PhpEngine->evaluatePath(’/opt/librenms/s…’, Array)
#21 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/View.php(139): Illuminate\View\Engines\CompilerEngine->get(’/opt/librenms/r…’, Array)
#22 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/View.php(122): Illuminate\View\View->getContents()
#23 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/View.php(91): Illuminate\View\View->renderContents()
#24 /opt/librenms/vendor/laravel/framework/src/Illuminate/Http/Response.php(62): Illuminate\View\View->render()
#25 /opt/librenms/vendor/laravel/framework/src/Illuminate/Http/Response.php(34): Illuminate\Http\Response->setContent(Object(Illuminate\View\View))
#26 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(780): Illuminate\Http\Response->__construct(Object(Illuminate\View\View), 200, Array)
#27 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(752): Illuminate\Routing\Router::toResponse(Object(Illuminate\Http\Request), Object(Illuminate\View\View))
#28 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(692): Illuminate\Routing\Router->prepareResponse(Object(Illuminate\Http\Request), Object(Illuminate\View\View))
#29 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(128): Illuminate\Routing\Router->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#30 /opt/librenms/app/Http/Middleware/LoadUserPreferences.php(30): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#31 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): App\Http\Middleware\LoadUserPreferences->handle(Object(Illuminate\Http\Request), Object(Closure))
#32 /opt/librenms/app/Http/Middleware/VerifyTwoFactor.php(39): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#33 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): App\Http\Middleware\VerifyTwoFactor->handle(Object(Illuminate\Http\Request), Object(Closure))
#34 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php(41): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#35 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Routing\Middleware\SubstituteBindings->handle(Object(Illuminate\Http\Request), Object(Closure))
#36 /opt/librenms/vendor/laravel/framework/src/Illuminate/Auth/Middleware/Authenticate.php(44): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#37 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Auth\Middleware\Authenticate->handle(Object(Illuminate\Http\Request), Object(Closure))
#38 /opt/librenms/app/Http/Middleware/LegacyExternalAuth.php(42): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#39 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): App\Http\Middleware\LegacyExternalAuth->handle(Object(Illuminate\Http\Request), Object(Closure))
#40 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php(78): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#41 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\VerifyCsrfToken->handle(Object(Illuminate\Http\Request), Object(Closure))
#42 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#43 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\View\Middleware\ShareErrorsFromSession->handle(Object(Illuminate\Http\Request), Object(Closure))
#44 /opt/librenms/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(121): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#45 /opt/librenms/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(63): Illuminate\Session\Middleware\StartSession->handleStatefulRequest(Object(Illuminate\Http\Request), Object(Illuminate\Session\Store), Object(Closure))
#46 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Session\Middleware\StartSession->handle(Object(Illuminate\Http\Request), Object(Closure))
#47 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#48 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse->handle(Object(Illuminate\Http\Request), Object(Closure))
#49 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(67): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#50 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Cookie\Middleware\EncryptCookies->handle(Object(Illuminate\Http\Request), Object(Closure))
#51 /opt/librenms/app/Http/Middleware/CheckInstalled.php(61): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#52 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): App\Http\Middleware\CheckInstalled->handle(Object(Illuminate\Http\Request), Object(Closure))
#53 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#54 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(694): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#55 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(669): Illuminate\Routing\Router->runRouteWithinStack(Object(Illuminate\Routing\Route), Object(Illuminate\Http\Request))
#56 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(635): Illuminate\Routing\Router->runRoute(Object(Illuminate\Http\Request), Object(Illuminate\Routing\Route))
#57 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(624): Illuminate\Routing\Router->dispatchToRoute(Object(Illuminate\Http\Request))
#58 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(166): Illuminate\Routing\Router->dispatch(Object(Illuminate\Http\Request))
#59 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(128): Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http\{closure}(Object(Illuminate\Http\Request))
#60 /opt/librenms/vendor/darkghosthunter/larapoke/src/Http/Middleware/LarapokeGlobalMiddleware.php(20): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#61 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): DarkGhostHunter\Larapoke\Http\Middleware\LarapokeGlobalMiddleware->handle(Object(Illuminate\Http\Request), Object(Closure))
#62 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#63 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle(Object(Illuminate\Http\Request), Object(Closure))
#64 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#65 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle(Object(Illuminate\Http\Request), Object(Closure))
#66 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php(27): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#67 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\ValidatePostSize->handle(Object(Illuminate\Http\Request), Object(Closure))
#68 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(86): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#69 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance->handle(Object(Illuminate\Http\Request), Object(Closure))
#70 /opt/librenms/vendor/fruitcake/laravel-cors/src/HandleCors.php(37): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#71 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Fruitcake\Cors\HandleCors->handle(Object(Illuminate\Http\Request), Object(Closure))
#72 /opt/librenms/vendor/fideloper/proxy/src/TrustProxies.php(57): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#73 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Fideloper\Proxy\TrustProxies->handle(Object(Illuminate\Http\Request), Object(Closure))
#74 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#75 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(141): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#76 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(110): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter(Object(Illuminate\Http\Request))
#77 /opt/librenms/html/index.php(52): Illuminate\Foundation\Http\Kernel->handle(Object(Illuminate\Http\Request))
#78 {main}
Based on the above I suspect something to do with MemCache. However, I am stuck and would like to know what to do next?!?!?!!
I am a noob with limited CentOS knowledge but can follow instructions.
Many thanks in advance!!!
Regards
Stu