and “/srv/git” is the home of user git, When I open the pagure page, there is always the following prompt “The permissions on this repository are being updated. This may take a while. During this time, you or some of the project's contributors may not be able to push to this repository”
and i can't delete project at the same time

What should I set the permissions to /srv/git

This message does not relate to the permission on the filesystem. It was a
message set and displayed while pagure was re-generated the gitolite
configuration (when pagure was using gitolite in the backend).
If you see this today it is likely that you do not have one of the pagure
workers working correctly.
Sometime a task fail for the worker (which you should be able to see in the
workers' log) and the DB doesn't get updated. You can then manually change this
status using pagure-admin, see pagure-admin read-only -h for more info

Thank you very much. After I configured the log, I found that pagure.cfg did not have permission when creating the project. The problem was solved by modifying the path corresponding to pagure.cfg