Fatal error: Uncaught Error: Class "App" not found in /var/www/html/repo/realestate/app/Plugin/Upload/Model/Behavior/FileGrabberBehavior.php:2 Stack trace: #0 {main} thrown in /var/www/html/repo/realestate/app/Plugin/Upload/Model/Behavior/FileGrabberBehavior.php on line 2