​
Message

Your account is on the PLAN plan, which requires you to register a Domain or TCP Address through the ngrok Dashboard before starting an Endpoint. Visit https://dashboard.ngrok.com/domains, for HTTP and TLS endpoints, or https://dashboard.ngrok.com/tcp-addresses, for TCP endpoints, to register a domain or address. Then use the --domain flag when starting an HTTP or TLS tunnel with your Agent. For TCP tunnels, use --remote_addr.

​
Further help

If you’re having trouble resolving this error, please reach out to support@ngrok.com