Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\Event\KernelEvent' not found in /home/itscm/dev.its.cm/itsgateway/vendor/symfony/http-kernel/Event/FinishRequestEvent.php:21 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/itsgateway/vendor/symfony/http-kernel/Event/FinishRequestEvent.php on line 21