I'm getting errors like responseDetails:"failed to forward request to upstream: connection refused"

I have looked at all things related to ports in the docs and I think everything is right. You can see my server starting up on the correct port Labeler server listening on http://[::1]:8080

I added some logs to prove the server is in fact running. Can I get some assistance here?

this is the code I'm deploying https://github.com/hipstersmoothie/github-labeler-bot/blob/main/src/label-server.ts