ERR_NGROK_3112: PROVIDER has returned an error when attempting to authorize you to use this site: - ngrok documentation

What does ERR_NGROK_3112 mean?

ngrok returns ERR_NGROK_3112 with this message:

<PROVIDER> has returned an error when attempting to authorize you to use this site:

<ERROR>

Where can I get more help with ERR_NGROK_3112?

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