Fatal error: Uncaught Error: Class "Drupal\Core\Entity\ContentEntityForm" not found in /home/qcsvlel/www/core/modules/menu_link_content/src/Form/MenuLinkContentForm.php:20 Stack trace: #0 {main} thrown in /home/qcsvlel/www/core/modules/menu_link_content/src/Form/MenuLinkContentForm.php on line 20