New install UI won't load - errors in librenms.log

When loading web UI I get this in my log:

[2018-08-16 14:13:50] production.ERROR: RuntimeException: The only supported ciphers are AES-128-CBC and AES-256-CBC with the correct key lengths. in /opt/librenms/vendor/laravel/framework/src/Illuminate/Encryption/Encrypter.php:43
Stack trace:
#0 /opt/librenms/vendor/laravel/framework/src/Illuminate/Encryption/EncryptionServiceProvider.php(27): Illuminate\Encryption\Encrypter->__construct(’’, ‘AES-256-CBC’)
#1 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(726): Illuminate\Encryption\EncryptionServiceProvider->Illuminate\Encryption{closure}(Object(Illuminate\Foundation\Application), Array)
#2 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(608): Illuminate\Container\Container->build(Object(Closure))
#3 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(575): Illuminate\Container\Container->resolve(‘encrypter’)
#4 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(728): Illuminate\Container\Container->make(‘encrypter’)
#5 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(862): Illuminate\Foundation\Application->make(‘encrypter’)
#6 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(790): Illuminate\Container\Container->resolveClass(Object(ReflectionParameter))
#7 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(757): Illuminate\Container\Container->resolveDependencies(Array)
#8 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(608): Illuminate\Container\Container->build(‘App\Http\Middle…’)
#9 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(575): Illuminate\Container\Container->resolve(‘App\Http\Middle…’)
#10 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(728): Illuminate\Container\Container->make(‘App\Http\Middle…’)
#11 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(138): Illuminate\Foundation\Application->make(‘App\Http\Middle…’)
#12 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}(Object(Illuminate\Http\Request))
#13 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(102): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#14 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(574): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#15 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(533): Illuminate\Routing\Router->runRouteWithinStack(Object(Illuminate\Routing\Route), Object(Illuminate\Http\Request))
#16 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(511): Illuminate\Routing\Router->dispatchToRoute(Object(Illuminate\Http\Request))
#17 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(176): Illuminate\Routing\Router->dispatch(Object(Illuminate\Http\Request))
#18 /opt/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(30): Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http{closure}(Object(Illuminate\Http\Request))
#19 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(30): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#20 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): Illuminate\Foundation\Http\Middleware\TransformsRequest->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/Foundation/Http/Middleware/TransformsRequest.php(30): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#23 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): Illuminate\Foundation\Http\Middleware\TransformsRequest->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/Foundation/Http/Middleware/ValidatePostSize.php(27): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#26 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): Illuminate\Foundation\Http\Middleware\ValidatePostSize->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/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/CheckForMaintenanceMode.php(46): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#29 /opt/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(148): Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode->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/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(102): Illuminate\Routing\Pipeline->Illuminate\Routing{closure}(Object(Illuminate\Http\Request))
#32 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(151): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#33 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(116): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter(Object(Illuminate\Http\Request))
#34 /opt/librenms/html/index.php(53): Illuminate\Foundation\Http\Kernel->handle(Object(Illuminate\Http\Request))
#35 {main}
[2018-08-16 14:13:50] production.ERROR: RuntimeException: The only supported ciphers are AES-128-CBC and AES-256-CBC with the correct key lengths. in /opt/librenms/vendor/laravel/framework/src/Illuminate/Encryption/Encrypter.php:43
Stack trace:
#0 /opt/librenms/vendor/laravel/framework/src/Illuminate/Encryption/EncryptionServiceProvider.php(27): Illuminate\Encryption\Encrypter->__construct(’’, ‘AES-256-CBC’)
#1 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(726): Illuminate\Encryption\EncryptionServiceProvider->Illuminate\Encryption{closure}(Object(Illuminate\Foundation\Application), Array)
#2 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(608): Illuminate\Container\Container->build(Object(Closure))
#3 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(575): Illuminate\Container\Container->resolve(‘encrypter’)
#4 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(728): Illuminate\Container\Container->make(‘encrypter’)
#5 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(862): Illuminate\Foundation\Application->make(‘encrypter’)
#6 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(790): Illuminate\Container\Container->resolveClass(Object(ReflectionParameter))
#7 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(757): Illuminate\Container\Container->resolveDependencies(Array)
#8 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(608): Illuminate\Container\Container->build(‘App\Http\Middle…’)
#9 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(575): Illuminate\Container\Container->resolve(‘App\Http\Middle…’)
#10 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(728): Illuminate\Container\Container->make(‘App\Http\Middle…’)
#11 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(215): Illuminate\Foundation\Application->make(‘App\Http\Middle…’)
#12 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(189): Illuminate\Foundation\Http\Kernel->terminateMiddleware(Object(Illuminate\Http\Request), Object(Illuminate\Http\Response))
#13 /opt/librenms/html/index.php(58): Illuminate\Foundation\Http\Kernel->terminate(Object(Illuminate\Http\Request), Object(Illuminate\Http\Response))
#14 {main}
[2018-08-16 14:13:50] production.ERROR: Symfony\Component\Debug\Exception\FatalErrorException: Uncaught BadMethodCallException: Method [send] does not exist on view. in /opt/librenms/vendor/laravel/framework/src/Illuminate/View/View.php:399
Stack trace:
#0 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Bootstrap/HandleExceptions.php(112): Illuminate\View\View->__call(‘send’, Array)
#1 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Bootstrap/HandleExceptions.php(89): Illuminate\Foundation\Bootstrap\HandleExceptions->renderHttpResponse(Object(RuntimeException))
#2 [internal function]: Illuminate\Foundation\Bootstrap\HandleExceptions->handleException(Object(RuntimeException))
#3 {main}
thrown in /opt/librenms/vendor/laravel/framework/src/Illuminate/View/View.php:399
Stack trace:
#0 {main}
/opt/librenms/discovery.php new 2018-08-16 14:15:01 - 0 devices discovered in 0.007 secs
/opt/librenms/poller.php 1 2018-08-16 14:15:05 - 1 devices polled in 3.659 secs

validate output …

Component Version
LibreNMS 1.42.01-36-g90665533b
DB Schema 258
PHP 7.0.30-0+deb9u1
MySQL 10.1.23-MariaDB-9+deb9u1
RRDTool 1.6.0
SNMP NET-SNMP 5.7.3

====================================

[OK] Composer Version: 1.7.2
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database schema correct

Sounds like the APP_KEY is invalid. Remove it from .env file and run php artisan key:generate

Thanks for the info, I was able to get it working after I removed the installation and started fresh again. Since you mention APP_KEY, I did see it missing before I wiped as I was working thru some of the files. That probably was it. I appreciate the assist!