Fatal error: Uncaught Error: Interface "ilCertificateDeleteAction" not found in /var/www/html/ilias/components/ILIAS/Certificate/classes/Template/Action/Delete/class.ilCertificateTemplateDeleteAction.php:24 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Certificate/classes/Template/Action/Delete/class.ilCertificateTemplateDeleteAction.php on line 24