Fatal error: Uncaught Error: Interface "TYPO3\CMS\Core\Messaging\WebhookMessageInterface" not found in /var/www/html/dev.hallescherfc.de/vendor/typo3/cms-webhooks/Documentation/Triggers/_snippets/_FolderAddedMessage.php:15 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/typo3/cms-webhooks/Documentation/Triggers/_snippets/_FolderAddedMessage.php on line 15