Hi,
Im trying to run ewelink-api node.js project https://github.com/skydiver/ewelink-api
With PM2 I can add the project, install dependencies and launch it. 
But seems that port (no matter which one I choose) is not listening in security menu:

Than if I do mapping for a website I got bad gateway and error with connecting upstream (so i think it is related with opening port problem?)
connect() failed (111: Connection refused) while connecting to upstream, client: 80.xxx.xxx.52, server: www.exxxxxxx, request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8081/", host: "xxxxxx"