Fatal error: Uncaught Error: Class "Drupal\Core\Menu\MenuLinkDefault" not found in /home/qcsvlel/www/core/modules/user/src/Plugin/Menu/LoginLogoutMenuLink.php:13 Stack trace: #0 {main} thrown in /home/qcsvlel/www/core/modules/user/src/Plugin/Menu/LoginLogoutMenuLink.php on line 13