| Missing or invalid Liquid value | Check the node name and variable path. Make sure the value exists for this trigger. |
| HTTP request failed | Check the URL, method, credentials, headers, and request body. |
| HTTP output missing | Check the response path and output type. |
| Ticket action failed | Check that the ticket is still accessible and that the action is valid for the ticket state. |
| Workflow input missing | Check whether a required input was left empty. |
| No switch branch matched | Add or adjust a fallback branch, or update branch conditions. |