ERR_NGROK_354

Message

Failed to bind DOMAIN. Nested subdomains of the ngrok base endpoint domain ENDPOINT_DOMAIN must be reserved first. Alternatively, try SUGGESTION instead.

Possible solutions

Reserve your subdomain in your ngrok account dashboard https://dashboard.ngrok.com/endpoints/domains before starting a tunnel using that subdomain.

Further help

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