Fatal error: Uncaught Error: Class 'Illuminate\Notifications\Notification' not found in /mnt/volume_lon1_01/backend/admin/vendor/laravel/framework/src/Illuminate/Auth/Notifications/VerifyEmail.php:12 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/admin/vendor/laravel/framework/src/Illuminate/Auth/Notifications/VerifyEmail.php on line 12