ERR_NGROK_SHIP_POOL_DETAILS_REQUIRED: A KIND pool needs KIND details - ngrok documentation

What does ERR_NGROK_SHIP_POOL_DETAILS_REQUIRED mean?

ngrok returns ERR_NGROK_SHIP_POOL_DETAILS_REQUIRED with this message:

A <KIND> pool needs <KIND> details. The request has none, or has details for another kind.

Where can I get more help with ERR_NGROK_SHIP_POOL_DETAILS_REQUIRED?

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