#1 git push problème

[guillaume]

hello
I need some help to resolve an lock problème on the project wich have this URL: https://sourceforge.net/projects/daltoncorp-gl02/
could you help me
here the error

Password:
Décompte des objets: 60, fait.
Delta compression using up to 16 threads.
Compression des objets: 100% (58/58), fait.
Écriture des objets: 100% (60/60), 117.24 KiB | 117.24 MiB/s, fait.
Total 60 (delta 6), reused 48 (delta 0)
remote: error: cannot lock ref 'refs/heads/master': Unable to create '/git/p/daltoncorp-gl02/code.git/./refs/heads/master.lock': File exists.
remote:
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.
To ssh://git.code.sf.net/p/daltoncorp-gl02/code
! [remote rejected] master -> master (failed to update ref)
error: impossible de pousser des références vers 'ssh://guillaume-gille@git.code.sf.net/p/daltoncorp-gl02/code'