Fatal error: Uncaught Error: Interface "Symfony\Component\Security\Http\Authentication\AuthenticationFailureHandlerInterface" not found in /home/zdpktgd/ptc/vendor.old/symfony/security-http/Authentication/CustomAuthenticationFailureHandler.php:21 Stack trace: #0 {main} thrown in /home/zdpktgd/ptc/vendor.old/symfony/security-http/Authentication/CustomAuthenticationFailureHandler.php on line 21