You may not run more than <MAX> tunnels over a single ngrok
session without an account. You may increase this limit by signing up and
upgrading. The tunnels already running on this session are:
<URLS>
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 support@ngrok.com.