ERR_NGROK_6022: Before you can serve HTML content, you must sign up for an ngrok account and install your authtoken - ngrok documentation

What does ERR_NGROK_6022 mean?

ngrok returns ERR_NGROK_6022 with this message:

Before you can serve HTML content, you must sign up for an ngrok account and install your authtoken.

Where can I get more help with ERR_NGROK_6022?

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