ERR_NGROK_1962: SSH User Certificate duration must be greater than zero; got duration of DURATION - ngrok documentation

What does ERR_NGROK_1962 mean?

ngrok returns ERR_NGROK_1962 with this message:

SSH User Certificate duration must be greater than zero; got duration of <DURATION>.

Where can I get more help with ERR_NGROK_1962?

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