Fatal error: Uncaught Error: Class "Drupal\Core\Entity\ContentEntityBase" not found in /home/www/drupal8/test/core/modules/content_moderation/src/Entity/ContentModerationState.php:49 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/content_moderation/src/Entity/ContentModerationState.php on line 49