After a new computer is replaced, the following error will be reported when you re open the gitlab project management web page in chrome:

An error occurred while loading commit signatures

Or the following error:

Error fetching diverging counts for branches. Please try again.

This is probably a proxy problem, so you need to check whether the proxy settings are correct. My problem is that I installed an ad plug-in (Adblock plus – a free ad blocker) in chrome, which blocks the normal access to web pages, so I just need to suspend the use of this plug-in.

After closing, all access is normal.