Fatal error: Uncaught Error: Class 'Illuminate\Notifications\Notification' not found in /var/www/html/ow-api-v2/vendor/laravel/horizon/src/Notifications/LongWaitDetected.php:12 Stack trace: #0 {main} thrown in /var/www/html/ow-api-v2/vendor/laravel/horizon/src/Notifications/LongWaitDetected.php on line 12