Fatal error: Uncaught Error: Class "Illuminate\Routing\Controller" not found in C:\xampp\htdocs\OFFLINE\Uawa\laravel-version\laravel\app\Http\Controllers\PaypalController.php:28 Stack trace: #0 {main} thrown in C:\xampp\htdocs\OFFLINE\Uawa\laravel-version\laravel\app\Http\Controllers\PaypalController.php on line 28