Fatal error: Uncaught Error: Class 'Symfony\Component\EventDispatcher\Event' not found in /home/n767897/indeflex.ridgebackdesign.com/lms/appCore/Events/Core/FileSystem/UploadEvent.php:10 Stack trace: #0 {main} thrown in /home/n767897/indeflex.ridgebackdesign.com/lms/appCore/Events/Core/FileSystem/UploadEvent.php on line 10