ERR_NGROK_5522: PROVIDER is too busy to handle requests and authorization cannot be completed at this time: DESCRIPTION - ngrok documentation

What does ERR_NGROK_5522 mean?

ngrok returns ERR_NGROK_5522 with this message:

<PROVIDER> is too busy to handle requests and authorization cannot be completed at this time: <DESCRIPTION>.

Where can I get more help with ERR_NGROK_5522?

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