Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\EventListener\AbstractSessionListener" not found in /home/ismailserin.helioho.st/felsefelik.xyz/vendor/symfony/http-kernel/EventListener/SessionListener.php:29 Stack trace: #0 {main} thrown in /home/ismailserin.helioho.st/felsefelik.xyz/vendor/symfony/http-kernel/EventListener/SessionListener.php on line 29