Error browsing webinterface

When i’m brosing the webinterface i get at random times an error. Can someone help me what’s going wrong?

[2019-02-11 12:09:03] production.ERROR: ErrorException: compact(): Undefined variable: operator in /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php:1229
Stack trace:
#0 [internal function]: Illuminate\Foundation\Bootstrap\HandleExceptions->handleError(8, ‘compact(): Unde…’, ‘/opt/librenms/v…’, 1229, Array)
#1 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(1229): compact(‘type’, ‘operator’, ‘query’, ‘boolean’)
#2 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(1179): Illuminate\Database\Query\Builder->addWhereExistsQuery(Object(Illuminate\Database\Query\Builder), ‘and’, true)
#3 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(1203): Illuminate\Database\Query\Builder->whereExists(Object(Closure), ‘and’, true)
#4 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(1254): Illuminate\Database\Query\Builder->whereNotExists(Object(Closure))
#5 /opt/librenms/app/Models/Notification.php(87): Illuminate\Database\Eloquent\Builder->__call(‘whereNotExists’, Array)
#6 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(934): App\Models\Notification->scopeIsUnread(Object(Illuminate\Database\Eloquent\Builder), Object(App\Models\User))
#7 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(1247): Illuminate\Database\Eloquent\Builder->callScope(Array, Array)
#8 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Model.php(1374): Illuminate\Database\Eloquent\Builder->__call(‘isUnread’, Array)
#9 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Model.php(1386): Illuminate\Database\Eloquent\Model->__call(‘isUnread’, Array)
#10 /opt/librenms/app/Checks.php(80): Illuminate\Database\Eloquent\Model::__callStatic(‘isUnread’, Array)
#11 /opt/librenms/app/Http/Controllers/LegacyController.php(11): App\Checks::postAuth()
#12 [internal function]: App\Http\Controllers\LegacyController->index(‘device/device=1…’)
#13 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Controller.php(55): call_user_func_array(Array, Array)
#14 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(44): Illuminate\Routing\Controller->callAction(‘index’, Array)
#15 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Route.php(203): Illuminate\Routing\ControllerDispatcher->dispatch(Object(Illuminate\Routing\Route), Object(App\Http\Controllers\LegacyController), ‘index’)
#16 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Route.php(160): Illuminate\Routing\Route->runController()
#17 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(572): Illuminate\Routing\Route->run()
#18 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(30): Illuminate\Routing\Router->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#19 /opt/librenms/app/Http/Middleware/VerifyTwoFactor.php(38): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#20 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): App\Http\Middleware\VerifyTwoFactor->handle(Object(Illuminate\Http\Request), Object(Closure))
#21 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#22 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php(41): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#23 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): Illuminate\Routing\Middleware\SubstituteBindings->handle(Object(Illuminate\Http\Request), Object(Closure))
#24 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#25 /opt/librenms/vendor/laravel/framework/src/Illuminate/Auth/Middleware/Authenticate.php(43): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#26 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): Illuminate\Auth\Middleware\Authenticate->handle(Object(Illuminate\Http\Request), Object(Closure))
#27 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#28 /opt/librenms/app/Http/Middleware/LegacySession.php(44): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#29 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): App\Http\Middleware\LegacySession->handle(Object(Illuminate\Http\Request), Object(Closure))
#30 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#31 /opt/librenms/app/Http/Middleware/LegacyExternalAuth.php(45): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#32 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): App\Http\Middleware\LegacyExternalAuth->handle(Object(Illuminate\Http\Request), Object(Closure))
#33 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#34 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php(65): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#35 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): Illuminate\Foundation\Http\Middleware\VerifyCsrfToken->handle(Object(Illuminate\Http\Request),
Object(Closure))
#36 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#37 /opt/librenms/vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php(49): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#38 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): Illuminate\View\Middleware\ShareErrorsFromSession->handle(Object(Illuminate\Http\Request), Object(Closure))
#39 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#40 /opt/librenms/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(64): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#41 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): Illuminate\Session\Middleware\StartSession->handle(Object(Illuminate\Http\Request), Object(Closure))
#42 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#43 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#44 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse->handle(Object(Illuminate\Http\Request), Object(Closure))
#45 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#46 /opt/librenms/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(59): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#47 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): Illuminate\Cookie\Middleware\EncryptCookies->handle(Object(Illuminate\Http\Request), Object(Closure))
#48 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#49 /opt/librenms/app/Http/Middleware/CheckInstalled.php(46): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#50 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): App\Http\Middleware\CheckInstalled->handle(Object(Illuminate\Http\Request), Object(Closure))
#51 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#52 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(102): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#53 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(574): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#54 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(533): Illuminate\Routing\Router->runRouteWithinStack(Object(Illuminate\Routing\Route), Object(Illuminate\Http\Request))
#55 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(511): Illuminate\Routing\Router->dispatchToRoute(Object(Illuminate\Http\Request))
#56 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(176): Illuminate\Routing\Router->dispatch(Object(Illuminate\Http\Request))
#57 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(30): Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http{closure}(Object(Illuminate\Http\Request))
#58 /opt/librenms/vendor/fideloper/proxy/src/TrustProxies.php(57): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#59 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): Fideloper\Proxy\TrustProxies->handle(Object(Illuminate\Http\Request), Object(Closure))
#60 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#61 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(30): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#62 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle(Object(Illuminate\Http\Request), Object(Closure))
#63 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#64 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(30): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#65 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle(Object(Illuminate\Http\Request), Object(Closure))
#66 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#67 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php(27): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#68 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): Illuminate\Foundation\Http\Middleware\ValidatePostSize->handle(Object(Illuminate\Http\Request), Object(Closure))
#69 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#70 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/CheckForMaintenanceMode.php(46): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#71 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode->handle(Object(Illuminate\Http\Request), Object(Closure))
#72 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#73 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(102): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#74 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(151): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#75 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(116): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter(Object(Illuminate\Http\Request))
#76 /opt/librenms/html/index.php(53): Illuminate\Foundation\Http\Kernel->handle(Object(Illuminate\Http\Request))

Output Validate.php

root@:/opt/librenms# ./validate.php
====================================
Component | Version
--------- | -------
LibreNMS | 1.48.1-30-g7e18a0708
DB Schema | 2019_01_16_195644_add_vrf_id_and_bgpLocalAs (131)
PHP | 7.3.2-2+ubuntu18.04.1+deb.sury.org+1
MySQL | 10.1.38-MariaDB-0ubuntu0.18.04.1
RRDTool | 1.7.0
SNMP | NET-SNMP 5.7.3
====================================
[OK] Composer Version: 1.8.4
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database schema correct
[FAIL] The poller (
***) has not completed within the last 5 minutes, check the cron job.

Maybe you are hitting max mysql connections?

Are you monitoring your librenms instance? (Mysql, rrdcached(if using), disk IO, etc)

Not yet. I’ve enanbled the monitoring.

Oh, wait. PHP 7.3. Actually is not fully supported yet. There is a PR that need tests and feedback from the community #9800

If you dont mind testing that PR…

For now, because this is a production site, i’ve moved back to php7.2. I hope is the problem is solved now.

PHP 7.3 is supported now.

Owkay, i will try to switch back to PHP 7.3 next week. Tnx for the headsup!