Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in /home/kbcsda/public_html/cms.kbcsda.org/vendor/symfony/http-kernel/EventListener/ValidateRequestListener.php:25 Stack trace: #0 {main} thrown in /home/kbcsda/public_html/cms.kbcsda.org/vendor/symfony/http-kernel/EventListener/ValidateRequestListener.php on line 25