@fabi
I'm sorry to hear that you're experiencing issues with the webhook not being triggered. It's good that you've already taken some initial troubleshooting steps. To assist you further, I'll need a bit more information:
1. Can you confirm if there have been any recent changes to the webhook URL or its configuration on the server side?
2. Have you checked the server logs to see if there are any incoming requests from the tool at all?
3. Is there any error message being returned by the tool or in the server logs that could give us a clue as to what's happening?
Once we have this information, we can proceed with more targeted troubleshooting. If you have already checked these and everything seems correct, it might be necessary to look into the tool's configuration or logs for more details. If you're unable to resolve the issue with this information, please ask support for more info on this.