ERR_NGROK_SHIP_PUBLISH_TARGET_KIND_UNSUPPORTED: The 'kind' value KIND is not supported - ngrok documentation

What does ERR_NGROK_SHIP_PUBLISH_TARGET_KIND_UNSUPPORTED mean?

ngrok returns ERR_NGROK_SHIP_PUBLISH_TARGET_KIND_UNSUPPORTED with this message:

The 'kind' value <KIND> is not supported. Allowed: 'builtin', 'ghcr', 'dockerhub', and 'custom'.

Where can I get more help with ERR_NGROK_SHIP_PUBLISH_TARGET_KIND_UNSUPPORTED?

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