Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in C:\xampp\htdocs\cms-propay\app\Http\Controllers\USDT\UsdtOrderController.php:17 Stack trace: #0 {main} thrown in C:\xampp\htdocs\cms-propay\app\Http\Controllers\USDT\UsdtOrderController.php on line 17