I updated the seat and restart it.
enable the app debug, I got the Stack Traces like below
```
Seat\Kassie\Calendar\Discord\DiscordActionException:
Unable to retrieve guild events

  at /var/www/seat/vendor/hermesdj/seat-calendar/src/Discord/DiscordClient.php:276
  at Seat\Kassie\Calendar\Discord\DiscordClient::getGuildChannels()
     (/var/www/seat/vendor/hermesdj/seat-calendar/src/Discord/DiscordClient.php:285)
  at Seat\Kassie\Calendar\Discord\DiscordClient::getVoiceChannels()
     (/var/www/seat/vendor/hermesdj/seat-calendar/src/Http/Controllers/OperationController.php:72)
  at Seat\Kassie\Calendar\Http\Controllers\OperationController->index(object(Request))
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54)
  at Illuminate\Routing\Controller->callAction('index', array(object(Request)))
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43)
  at Illuminate\Routing\ControllerDispatcher->dispatch(object(Route), object(OperationController), 'index')
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Routing/Route.php:259)
  at Illuminate\Routing\Route->runController()
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Routing/Route.php:205)
  at Illuminate\Routing\Route->run()
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Routing/Router.php:806)
  at Illuminate\Routing\Router->Illuminate\Routing\{closure}(object(Request))
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:144)
  at Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(object(Request))
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Auth/Middleware/Authorize.php:57)
  at Illuminate\Auth\Middleware\Authorize->handle(object(Request), object(Closure), 'calendar.view')
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183)
  at Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(object(Request))
     (/var/www/seat/vendor/eveseat/web/src/Http/Middleware/Locale.php:44)
  at Seat\Web\Http\Middleware\Locale->handle(object(Request), object(Closure))
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183)
  at Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(object(Request))
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php:50)
  at Illuminate\Routing\Middleware\SubstituteBindings->handle(object(Request), object(Closure))
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183)
  at Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(object(Request))
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Auth/Middleware/Authenticate.php:57)
  at Illuminate\Auth\Middleware\Authenticate->handle(object(Request), object(Closure))
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183)
  at Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(object(Request))
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php:78)
  at Illuminate\Foundation\Http\Middleware\VerifyCsrfToken->handle(object(Request), object(Closure))
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183)
  at Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(object(Request))
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php:49)
  at Illuminate\View\Middleware\ShareErrorsFromSession->handle(object(Request), object(Closure))
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183)
  at Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(object(Request))
```

and 
```
Seat\Kassie\Calendar\Discord\DiscordSettingsException:
Parameter guild_id is missing.

  at /var/www/seat/vendor/hermesdj/seat-calendar/src/Discord/DiscordClient.php:50
  at Seat\Kassie\Calendar\Discord\DiscordClient::getInstance()
     (/var/www/seat/vendor/hermesdj/seat-calendar/src/Discord/DiscordClient.php:265)
  at Seat\Kassie\Calendar\Discord\DiscordClient::getGuildChannels()
     (/var/www/seat/vendor/hermesdj/seat-calendar/src/Discord/DiscordClient.php:285)
  at Seat\Kassie\Calendar\Discord\DiscordClient::getVoiceChannels()
     (/var/www/seat/vendor/hermesdj/seat-calendar/src/Http/Controllers/OperationController.php:72)
  at Seat\Kassie\Calendar\Http\Controllers\OperationController->index(object(Request))
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54)
  at Illuminate\Routing\Controller->callAction('index', array(object(Request)))
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43)
  at Illuminate\Routing\ControllerDispatcher->dispatch(object(Route), object(OperationController), 'index')
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Routing/Route.php:259)
  at Illuminate\Routing\Route->runController()
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Routing/Route.php:205)
  at Illuminate\Routing\Route->run()
     (/var/www/seat/vendor/laravel/framework/src/Illuminate/Routing/Router.php:806)
```