Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\EventListener\AbstractSessionListener' not found in /home/itscm/dev.its.cm/webservices/vendor/symfony/http-kernel/EventListener/SessionListener.php:29 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/webservices/vendor/symfony/http-kernel/EventListener/SessionListener.php on line 29