Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\Event\FilterControllerEvent" not found in /home/alkhalaffamily/public_html/test/vendor/symfony/http-kernel/Event/FilterControllerArgumentsEvent.php:20 Stack trace: #0 {main} thrown in /home/alkhalaffamily/public_html/test/vendor/symfony/http-kernel/Event/FilterControllerArgumentsEvent.php on line 20