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