Fatal error: Uncaught Error: Class "Drupal\Core\Entity\EntityAccessControlHandler" not found in /home/www/drupal8/test/core/modules/block_content/src/BlockContentAccessControlHandler.php:21 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/block_content/src/BlockContentAccessControlHandler.php on line 21