Fatal error: Uncaught Error: Interface "Symfony\Component\Security\Http\Logout\LogoutHandlerInterface" not found in /home/dbdevweblamp/public_html/vendor/symfony/security-http/Logout/CsrfTokenClearingLogoutHandler.php:22 Stack trace: #0 {main} thrown in /home/dbdevweblamp/public_html/vendor/symfony/security-http/Logout/CsrfTokenClearingLogoutHandler.php on line 22