Can't push to my repo

For some reason I can't push to my repository. Please can you fix as google suggests this is a server-side permissions problem.

iains-mbp:lsdmap ibethune$ git push
Password:
Counting objects: 2, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (2/2), 265 bytes | 0 bytes/s, done.
Total 2 (delta 1), reused 0 (delta 0)
error: insufficient permission for adding an object to repository database ./objects

fatal: failed to write object
error: unpack failed: unpack-objects abnormal exit
To ssh://ibethune@git.code.sf.net/p/lsdmap/git
! [remote rejected] master -> master (n/a (unpacker error))
error: failed to push some refs to 'ssh://ibethune@git.code.sf.net/p/lsdmap/git'