Cant pull

Im getting this error:

roger@serenity ~/projects/Urho3D $ git pull remote: Counting objects: 60, done. remote: Compressing objects: 100% (60/60), done. error: insufficient permission for adding an object to repository database .git/objects fatal: failed to write object fatal: unpack-objects failed

I updated last friday without problems. Is there any way to solve this other than cloning the repo again?