Fatal error: Uncaught Error: Interface 'Symfony\Component\EventDispatcher\EventSubscriberInterface' not found in /home/users/00/3c/21/home/www/vendor/symfony/security-http/Firewall.php:34 Stack trace: #0 {main} thrown in /home/users/00/3c/21/home/www/vendor/symfony/security-http/Firewall.php on line 34