Fatal error: Uncaught Error: Class "Symfony\Component\EventDispatcher\Event" not found in /home/rccglwuq/events.disio.com.ng/vendor/vich/uploader-bundle/Event/Event.php:13 Stack trace: #0 {main} thrown in /home/rccglwuq/events.disio.com.ng/vendor/vich/uploader-bundle/Event/Event.php on line 13