HTTP auth is only available after you sign up. Failed to bind a tunnel with HTTP authentication for an unauthenticated client. Sign up at: https://dashboard.ngrok.com/signup If you have already signed up, make sure your authtoken is installed. Your authtoken is available on your dashboard: https://dashboard.ngrok.com/get-started/your-authtoken
If you're having trouble resolving this error, please reach out to firstname.lastname@example.org.