ERR_NGROK_1621: The module NAME is not supported on an endpoint configuration of type TYPE - ngrok documentation

What does ERR_NGROK_1621 mean?

ngrok returns ERR_NGROK_1621 with this message:

The module <NAME> is not supported on an endpoint configuration of type <TYPE>.

Troubleshoot ERR_NGROK_1621 with your AI agent. Connect it to the ngrok MCP server, then ask what caused the error and how to fix it.

Where can I get more help with ERR_NGROK_1621?

Email support@ngrok.com and include the error code.