ERR_NGROK_AI_GATEWAY_REQUEST_CAPACITY_UNAVAILABLE: The AI gateway is busy - ngrok documentation

What does ERR_NGROK_AI_GATEWAY_REQUEST_CAPACITY_UNAVAILABLE mean?

ngrok returns ERR_NGROK_AI_GATEWAY_REQUEST_CAPACITY_UNAVAILABLE with this message:

The AI gateway is busy. Retry the request.

Where can I get more help with ERR_NGROK_AI_GATEWAY_REQUEST_CAPACITY_UNAVAILABLE?

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