Fatal error: Uncaught Error: Interface 'Symfony\Component\Security\Http\Logout\LogoutHandlerInterface' not found in /home/benjamincb/demos/acdg-site/vendor/contao/manager-bundle/src/Security/Logout/LogoutHandler.php:21 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg-site/vendor/contao/manager-bundle/src/Security/Logout/LogoutHandler.php on line 21