Fatal error: Uncaught Error: Class "Drupal\layout_builder\Form\LayoutRebuildConfirmFormBase" not found in /home/qcsvlel/www/core/modules/layout_builder/src/Form/RemoveBlockForm.php:14 Stack trace: #0 {main} thrown in /home/qcsvlel/www/core/modules/layout_builder/src/Form/RemoveBlockForm.php on line 14