Config Files Gitlab Server Omnibus - too many redirects

In the image I change “after sign path” and “sign up enabled” and I dont remember if “home page url” too, but when I save changes and I am trying login to my server but the webbrowser tell me “too many redirects”

How can I change config file paramters to delete the changes?

Where can I find config files in the server?

Its imposible to login web and I can’t find config file with my lasta changes.

The Gitlab server is version 7.