Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in C:\laragon\www\clientxcms\app\Http\Controllers\Admin\Billing\ElectronicInvoicingController.php:17 Stack trace: #0 {main} thrown in C:\laragon\www\clientxcms\app\Http\Controllers\Admin\Billing\ElectronicInvoicingController.php on line 17