Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\Event\GetResponseEvent" not found in /home/vincent/http/concrete5/concrete/vendor/symfony/http-kernel/Event/GetResponseForExceptionEvent.php:30 Stack trace: #0 {main} thrown in /home/vincent/http/concrete5/concrete/vendor/symfony/http-kernel/Event/GetResponseForExceptionEvent.php on line 30