ERR_NGROK_18002: The provided cloud endpoint traffic policy configuration is invalid: MESSAGE - ngrok documentation

What does ERR_NGROK_18002 mean?

ngrok returns ERR_NGROK_18002 with this message:

The provided cloud endpoint traffic policy configuration is invalid: <MESSAGE>

Where can I get more help with ERR_NGROK_18002?

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