ERR_NGROK_3152: An invalid request was sent to PROVIDER but its response is required in order to continue - ngrok documentation

What does ERR_NGROK_3152 mean?

ngrok returns ERR_NGROK_3152 with this message:

An invalid request was sent to <PROVIDER> but its response is required in order to continue. This is a bug and it has been reported; please try again in a couple of hours to see if it has been resolved.

Troubleshoot ERR_NGROK_3152 with your AI agent. Connect it to the ngrok MCP server, then ask what caused the error and how to fix it.

Where can I get more help with ERR_NGROK_3152?

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