Fatal error: Uncaught Error: Class "Symfony\Component\Security\Http\Firewall\AbstractListener" not found in /home/dbdevweblamp/public_html/vendor/symfony/security-http/Firewall/AnonymousAuthenticationListener.php:33 Stack trace: #0 {main} thrown in /home/dbdevweblamp/public_html/vendor/symfony/security-http/Firewall/AnonymousAuthenticationListener.php on line 33