ERR_NGROK_SHIP_CHATBOT_CHANNEL_NAME_REQUIRED: PROVIDER returned no name for channel CHANNEL - ngrok documentation

What does ERR_NGROK_SHIP_CHATBOT_CHANNEL_NAME_REQUIRED mean?

ngrok returns ERR_NGROK_SHIP_CHATBOT_CHANNEL_NAME_REQUIRED with this message:

<PROVIDER> returned no name for channel <CHANNEL>. Subscribe from a named channel.

Where can I get more help with ERR_NGROK_SHIP_CHATBOT_CHANNEL_NAME_REQUIRED?

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