Project Settings-General makes 500 error

Gitlab produces 500 internal server error when I click project’s Settings-General menu.

What should I check for?
It has perfectly worked before


Is this on a self-managed instance, or the (SaaS) service?

If this is on the self-managed instance, could you try to reproduce the issue when running sudo gitlab-ctl tail on the GitLab server host? You should notice an exception when the 500 error occurs, which can help determine the cause of the issue.

Was an upgrade of GitLab recently performed? What is the current version in use?

thanks for your reply. it was the and it works now.
I think it was a’s internal problem which is solved now.