Fatal error: Uncaught Error: Class "Drupal\Core\Form\ConfirmFormBase" not found in /home/fnbrshareacopy/public_html/modules/contrib/webform/src/Form/WebformDeleteFormBase.php:12 Stack trace: #0 {main} thrown in /home/fnbrshareacopy/public_html/modules/contrib/webform/src/Form/WebformDeleteFormBase.php on line 12