Change or map a database to Gitlab Web App

I had a Gitlab Server installed in my own Local Server.

After changing the IP adress of my server , i modified all files when you can find the local ip Adress such as (Nginx /etc/nginx/sites-available/gitlab.conf, /home/git/gitlab/config/gitlab.rb) something like this.

I made a :

‘sudo gitlab-ctl reconfigure’

After that all datas (projects/users/…) dispared from gitlab web app (localhost). However when i’m connecting to database postgres using pgAdmin.

the datas still saved in database gitlabhq_production but not appearing in the Web App.

My Question How i could solve this issue , like how can i map my gitlab WebApp (localhost) with an existing database ?

Thank You in Advance .