Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in /home/astechc1/public_html/vendor/symfony/security-http/EventListener/CheckCredentialsListener.php:34 Stack trace: #0 {main} thrown in /home/astechc1/public_html/vendor/symfony/security-http/EventListener/CheckCredentialsListener.php on line 34