Email notification - 500 Server Error

[zvarg]

Describe the bug
Clicking "Test mail channel" on Notifications page throws a 500 internal server error.

To Reproduce
Steps to reproduce the behavior:

1. Go to Notification page
2. Enable Mail notifications
3. Add recipients with a valid email address
4. Test mail channel
5. See error

Expected behavior
An email is received on email account.

Environment (please complete the following information):

• OS: Ubuntu
• Architecture: arm64
• Version [e.g. v1]

Logs
192.168.0.243 - - [25/Dec/2022:17:47:22 +0000] "POST /livewire/message/app.filament.pages.settings.notification-page HTTP/1.1" 500 6628 "http://pi:9020/admin/notifications" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0"

192.168.0.243 - - [25/Dec/2022:17:47:27 +0000] "POST /livewire/message/filament.core.notifications HTTP/1.1" 200 143 "http://pi:9020/admin/notifications" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0"

192.168.0.243 - - [25/Dec/2022:17:47:29 +0000] "GET /admin/notifications HTTP/1.1" 302 362 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0"

192.168.0.243 - - [25/Dec/2022:17:47:29 +0000] "GET /filament/assets/app.css.map HTTP/1.1" 200 19366 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0"

192.168.0.243 - - [25/Dec/2022:17:47:29 +0000] "GET /livewire/livewire.js.map HTTP/1.1" 200 115449 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0"

192.168.0.243 - - [25/Dec/2022:17:47:29 +0000] "GET /admin/login HTTP/1.1" 200 3726 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0"

192.168.0.243 - - [25/Dec/2022:17:47:32 +0000] "POST /livewire/message/filament.core.notifications HTTP/1.1" 200 143 "http://pi:9020/admin/notifications" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0"

[2022-12-25 17:47:33] production.ERROR: count(): Argument #1 ($value) must be of type Countable|array, null given {"userId":1,"exception":"[object] (TypeError(code: 0): count(): Argument #1 ($value) must be of type Countable|array, null given at /var/www/html/app/Filament/Pages/Settings/NotificationPage.php:154)
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#0 /var/www/html/app/Filament/Pages/Settings/NotificationPage.php(154): count()

#1 /var/www/html/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(36): App\Filament\Pages\Settings\NotificationPage->sendTestMailNotification()

#2 /var/www/html/vendor/laravel/framework/src/Illuminate/Container/Util.php(41): Illuminate\Container\BoundMethod::Illuminate\Container\{closure}()

#3 /var/www/html/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(93): Illuminate\Container\Util::unwrapIfClosure()

#4 /var/www/html/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(37): Illuminate\Container\BoundMethod::callBoundMethod()

#5 /var/www/html/vendor/livewire/livewire/src/ComponentConcerns/HandlesActions.php(149): Illuminate\Container\BoundMethod::call()

#6 /var/www/html/vendor/livewire/livewire/src/HydrationMiddleware/PerformActionCalls.php(38): Livewire\Component->callMethod()

#7 /var/www/html/vendor/livewire/livewire/src/LifecycleManager.php(89): Livewire\HydrationMiddleware\PerformActionCalls::hydrate()

#8 /var/www/html/vendor/livewire/livewire/src/Connection/ConnectionHandler.php(13): Livewire\LifecycleManager->hydrate()

#9 /var/www/html/vendor/livewire/livewire/src/Controllers/HttpConnectionHandler.php(20): Livewire\Connection\ConnectionHandler->handle()

#10 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(46): Livewire\Controllers\HttpConnectionHandler->__invoke()

#11 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Route.php(260): Illuminate\Routing\ControllerDispatcher->dispatch()

#12 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Route.php(205): Illuminate\Routing\Route->runController()

#13 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(798): Illuminate\Routing\Route->run()

#14 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(141): Illuminate\Routing\Router->Illuminate\Routing\{closure}()

#15 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php(50): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()

#16 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Routing\Middleware\SubstituteBindings->handle()

#17 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php(78): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()

#18 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Foundation\Http\Middleware\VerifyCsrfToken->handle()

#19 /var/www/html/vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()

#20 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\View\Middleware\ShareErrorsFromSession->handle()

#21 /var/www/html/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(121): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()

#22 /var/www/html/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(64): Illuminate\Session\Middleware\StartSession->handleStatefulRequest()

#23 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Session\Middleware\StartSession->handle()

#24 /var/www/html/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()

#25 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse->handle()

#26 /var/www/html/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(67): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()

#27 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Cookie\Middleware\EncryptCookies->handle()

#28 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(116): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()

#29 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(799): Illuminate\Pipeline\Pipeline->then()

#30 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(776): Illuminate\Routing\Router->runRouteWithinStack()

#31 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(740): Illuminate\Routing\Router->runRoute()

#32 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(729): Illuminate\Routing\Router->dispatchToRoute()

#33 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(190): Illuminate\Routing\Router->dispatch()

#34 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(141): Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http\{closure}()

#35 /var/www/html/vendor/livewire/livewire/src/DisableBrowserCache.php(19): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()

#36 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Livewire\DisableBrowserCache->handle()

#37 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ConvertEmptyStringsToNull.php(27): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()

#38 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull->handle()

#39 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TrimStrings.php(36): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()

#40 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Foundation\Http\Middleware\TrimStrings->handle()

#41 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php(27): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()

#42 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Foundation\Http\Middleware\ValidatePostSize->handle()

#43 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(86): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()

#44 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance->handle()

#45 /var/www/html/vendor/laravel/framework/src/Illuminate/Http/Middleware/HandleCors.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()

#46 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Http\Middleware\HandleCors->handle()

#47 /var/www/html/vendor/laravel/framework/src/Illuminate/Http/Middleware/TrustProxies.php(39): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()

#48 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Http\Middleware\TrustProxies->handle()

#49 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(116): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()

#50 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(165): Illuminate\Pipeline\Pipeline->then()

#51 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(134): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter()

#52 /var/www/html/public/index.php(52): Illuminate\Foundation\Http\Kernel->handle()

#53 {main}

[alexjustesen]

After you add the email address make sure to click "save" before testing it