ERR_NGROK_2255: Invalid configuration for ACTION: Maximum ELEMENT allowed per action is MAX - ngrok documentation

What does ERR_NGROK_2255 mean?

ngrok returns ERR_NGROK_2255 with this message:

Invalid configuration for <ACTION>: Maximum <ELEMENT> allowed per action is <MAX>

Where can I get more help with ERR_NGROK_2255?

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