ERR_NGROK_1679: The endpoint configuration specifies conflicting authentication modules - ngrok documentation

What does ERR_NGROK_1679 mean?

ngrok returns ERR_NGROK_1679 with this message:

The endpoint configuration specifies conflicting authentication modules. Only one of SAML, OIDC, OAuth or Basic Auth may be enabled.

Where can I get more help with ERR_NGROK_1679?

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