git repo is not correct working.

stan220@stan220-Aspire-7750G:~/workspace/miracula$ git push origin master
Counting objects: 29, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (16/16), done.
Writing objects: 100% (16/16), 2.10 KiB, done.
Total 16 (delta 8), reused 0 (delta 0)
remote: Traceback (most recent call last):
remote: File "/opt/python/domains/bitbucket.org/current/bitbucket/scripts/git/hooks/pre-receive", line 12, in <module>
remote: sys.exit(prehooks.githooks())
remote: File "/opt/python/domains/bitbucket.org/current/bitbucket/local/env/lib/python2.7/site-packages/orochi/git.py", line 1367, in wrapper
remote: nodes = sortednodes(newcsets)
remote: File "/opt/python/domains/bitbucket.org/current/bitbucket/local/env/lib/python2.7/site-packages/orochi/git.py", line 1366, in sortednodes
remote: return [str(c.hash) for c in sorted(csets, key=lambda c: c.date)]
remote: File "/opt/python/domains/bitbucket.org/current/bitbucket/local/env/lib/python2.7/site-packages/orochi/git.py", line 1366, in <lambda>
remote: return [str(c.hash) for c in sorted(csets, key=lambda c: c.date)]
remote: File "/opt/python/domains/bitbucket.org/current/bitbucket/local/env/lib/python2.7/site-packages/orochi/cache.py", line 68, in get
remote: result = self._func(instance)
remote: File "/opt/python/domains/bitbucket.org/current/bitbucket/local/env/lib/python2.7/site-packages/orochi/git.py", line 88, in date
remote: dt = datetime.utcfromtimestamp(self._commit.committer[2])
remote: File "/opt/python/domains/bitbucket.org/current/bitbucket/local/env/lib/python2.7/site-packages/orochi/cache.py", line 68, in get
remote: result = self._func(instance)
remote: File "/opt/python/domains/bitbucket.org/current/bitbucket/local/env/lib/python2.7/site-packages/orochi/git.py", line 59, in _commit
remote: return self.repo._repo[self._sha]
remote: pygit2.GitError: 4b3f44e5d95088dad0022f3b12f70231d9a9d107: Failed to lookup object
remote: - Failed to parse commit
remote: - Failed to parse signature. Signature too short
To git@bitbucket.org:stan220/miracula.git
! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'git@bitbucket.org:stan220/miracula.git'