Praefect- connection refused

I’m trying to connect a praefect instance to my gitlab application however it says that my connection refused when trying to connect to port 2503. I checked and found that the listener is for port 2503 is not set up in the praefect instance. The praefect instance compiles properly upon running gitlab-ctl reconfigure. However there are issues with the praefect Postgres db as I have set it to false and haven’t set it up yet. I intend to add an rds db to it. Is that the problem?