The "assistant-request-returned-error" indicates VAPI could not communicate with your assistant, often due to network or server issues. Please verify that your n8n webhook/server URL is publicly accessible and returns a valid (e.g., 200 OK) response to VAPI's requests. Example check (using curl):

bash
curl -X POST https://your-n8n-server/webhook-path -d '{}'

If the server is unreachable or returns an error, VAPI will not trigger the workflow. For more details, see the [call ended reason documentation](https://docs.vapi.ai/calls/call-ended-reason). Source: - [Call ended reason documentation](https://docs.vapi.ai/calls/call-ended-reason)

There's no problem with the n8n workflow, it was working with no problem.

Hi, Could you provide more information about the issue you are facing? it looks like you have deleted the initial message.