Fatal error: Uncaught Error: Class "Illuminate\Notifications\Notification" not found in C:\xampp\htdocs\snipe-it\app\Notifications\CheckinLicenseSeatNotification.php:13 Stack trace: #0 {main} thrown in C:\xampp\htdocs\snipe-it\app\Notifications\CheckinLicenseSeatNotification.php on line 13