Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in /var/www/html/simrs/backend/app/Http/Controllers/Logistik/PurchaseOrderCtrl.php:18 Stack trace: #0 {main} thrown in /var/www/html/simrs/backend/app/Http/Controllers/Logistik/PurchaseOrderCtrl.php on line 18