when I tried under in linux terminal,
git push origin +master
I saw this error
error: update_ref failed for ref 'refs/remotes/origin/master': cannot lock ref 'refs/remotes/origin/master': Unable to create '/home/[myfile_route]/.git/refs/remotes/origin/master.lock': Permission denied
I think the reason is, that my github repository is locked repository-only I can see. Is it right? or if it's wrong, why this happened?