ERR_NGROK_9013: Your legacy account is not authorized to run the agent with mutual TLS - ngrok documentation

What does ERR_NGROK_9013 mean?

ngrok returns ERR_NGROK_9013 with this message:

Your legacy account is not authorized to run the agent with mutual TLS.

Contact us at: sales@ngrok.com

Where can I get more help with ERR_NGROK_9013?

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