Fatal error: Uncaught Error: Class "App\Foundation\Exceptions\DomainException" not found in C:\laragon\www\Clinic\app\Modules\Appointments\Exceptions\OnlineBookingException.php:21 Stack trace: #0 {main} thrown in C:\laragon\www\Clinic\app\Modules\Appointments\Exceptions\OnlineBookingException.php on line 21