Existing project showing 404

Summary

We have a existing active private project on this url. But suddenly it is showing 404 and we are not able to push or pull our code. Last commit was about 3 hours ago, now we are not able access it. It is there under project list but when we click, it is showing 404 page.

Steps to reproduce

• project name is admin-starter under optimavalue group. It is hosted on on GitLab.com. Link: https://gitlab.com/optimavalue/admin-starter
• Simply go to the link, it will return 404. Actually, it should return our project page.
• It is private project, so I don't know, whether you have rights to view it. If you require rights, feel free to mail me at yash@logicwind.com

What is the current bug behavior?

It is showing 404 instead

What is the expected correct behavior?

It should open project that we are working on.

Relevant logs and/or screenshots

Output of checks

(If you are reporting a bug on GitLab.com, write: This bug happens on GitLab.com)

Possible fixes

I already searched, I think it is because of cache.