Gitlab Upgrade /Project not visible in Gitlab GUI

Hi Gitlab Support Team,
Could you please assist me with this:

I’m using Gitlab Version(12.5-ce) , I was upgrading the gitlab unfortunately upgrade got failed afterward rollback to previous version but facing problem that I’m not able to view gitlab project information .

I have checked that all the project/repository details are available in gitaly as well as git-data directory but that is not reflecting into Gitlab GUI.

Path:- /git-data/repositories/@hashed
Also is there any encryption file used with which we can view the projects in UI present in /git-data/repositories/@hashed.
E.g. json file present in path /etc/gitlab/gitlab-secret.json

Thanks in advance

Regards
Nikhil