> ## Documentation Index
> Fetch the complete documentation index at: https://ngrok.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Error 6011

## ERR\_NGROK\_6011

You may not specify `MIDDLEWARE` options from the ngrok agent because this domain has a configured endpoint configuration: `ECID`. Remove the endpoint configuration from this domain or remove the conflicting options when starting the ngrok agent.

## Further help

If you're having trouble resolving this error, please reach out to [support@ngrok.com](mailto:support@ngrok.com?subject=Help%20with%20ERR_NGROK_6011)