Fatal error: Uncaught Error: Class "Drupal\Core\Config\Entity\ConfigEntityBundleBase" not found in /home/www/drupal8/test/modules/webform/src/Entity/Webform.php:111 Stack trace: #0 {main} thrown in /home/www/drupal8/test/modules/webform/src/Entity/Webform.php on line 111