Can't merge or push merged commit into master branch on

I’ve got a merge request that’s good to go, no conflicts. Using the merge button on will switch over to the loading button for a minute and then go back to the regular merge request dialog.

I merged the feature branch into master locally and have tried pushing/force to master with the following error.

Total 0 (delta 0), reused 0 (delta 0)
remote: error: cannot lock ref 'refs/heads/master': Unable to create '/var/opt/gitlab/git-data-file07/repositories/ncrmro/jtx.git/./refs/heads/master.lock': File exists.        
remote: Another git process seems to be running in this repository, e.g.        
remote: an editor opened by 'git commit'. Please make sure all processes        
remote: are terminated then try again. If it still fails, a git process        
remote: may have crashed in this repository earlier:        
remote: remove the file manually to continue.        
error: failed to push some refs to ''

Of note is I can pushed the merged master branch, but when attempting to merge the merged master into the master on I get the following

Something went wrong during merge: Conflicts detected during merge. This merge request failed to be merged automatically

Which I assume is a reference to the lock file.

Issue made here on