Error on push (unable to create temporary sha1 filename)

[Jan Niklas Hasse <jhasse@gmail.com>]

Hello everyone,

I'm new to git and recently set up my own server where I can push to
via ssh. It worked fine for several pushes but suddenly I got this
error message:

git push origin master

Counting objects: 37, done.
Compressing objects: 100% (27/27)
Writing objects: 100% (31/31)
Writing objects: 100% (31/31), 5.59 KiB, done.
Total 31 (delta 11), reused 10 (delta 1)
error: unable to create temporary sha1 filename ./objects/0e: File exists

fatal: failed to write object
error: unpack failed: unpacker exited with error code
To git@myserver.de:django.git
 ! [remote rejected] master -> master (n/a (unpacker error))
error: failed to push some refs to 'git@myserver.de:django.git'


I didn't changed anything on the server and haven't done anything
special in my local copy (just added/edited files). How can I fix
this? (Already tried cloning my repository locally and push from the
new one).

Thanks in advice,
Jan

PS: Please cc me in your response since I'm not subscribed to the mailing list.