After overcomming https://pagure.io/pagure/issue/4030 now I'm looking at a new error whenever I add a comment when submitting a comment on a issue, when pressing the Comment button it freezes.
Just by manually leaving the page it can be used again.

trisquel 8 / buntu 16.04 based:
- pagure - commit dd1ea30
- python 3.5.2
- pagure celery worker
- gitolite celery worker
- postgresql
- libgit2-0.27.4
- virtual environment = /opt/pag_01/pag_01-server/venv

venv/bin/pip freeze
alembic==1.0.3
amqp==2.3.2
arrow==0.12.1
asn1crypto==0.24.0
bcrypt==3.1.4
billiard==3.5.0.4
binaryornot==0.4.4
bleach==3.0.2
blinker==1.4
celery==4.2.1
certifi==2018.10.15
cffi==1.11.5
chardet==3.0.4
Click==7.0
cryptography==2.4.1
defusedxml==0.5.0
docutils==0.14
Flask==1.0.2
Flask-WTF==0.14.2
idna==2.7
itsdangerous==1.1.0
Jinja2==2.10
kitchen==1.2.5
kombu==4.2.1
Mako==1.0.7
Markdown==2.6.11
MarkupSafe==1.1.0
munch==2.3.2
Pillow==5.3.0
pkg-resources==0.0.0
psutil==5.4.8
psycopg2==2.7.6.1
pycparser==2.19
pygit2==0.27.2
python-dateutil==2.7.5
python-editor==1.0.3
python-openid-cla==1.2
python-openid-teams==1.1
python3-openid==3.1.0
pytz==2018.7
redis==2.10.6
requests==2.20.1
six==1.11.0
SQLAlchemy==1.2.14
straight.plugin==1.5.0
urllib3==1.24.1
vine==1.1.4
webencodings==0.5.1
Werkzeug==0.14.1
WTForms==2.2.1


Error trace:


[ERROR] celery.app.trace: Task pagure.lib.tasks.update_git[a48fae7d-12d9-4d83-8955-1691c3dceacc] raised unexpected: PagurePushDenied('Remote hook declined the push: Traceback (most recent call last):\nFile "hooks/pre-receive", line 19, in <module>\nimport pagure.lib\nImportError: No module named pagure.lib',)
Traceback (most recent call last):
File "/opt/pag_01/pag_01-server/pagure/lib/git.py", line 1040, in push
env=env,
File "/usr/lib/python3.5/subprocess.py", line 626, in check_output
kwargs).stdout
File "/usr/lib/python3.5/subprocess.py", line 708, in run
output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['git', 'push', 'origin', 'master:master']' returned non-zero exit status 1
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/opt/pag_01/pag_01-server/venv/lib/python3.5/site-packages/celery/app/trace.py", line 382, in trace_task
R = retval = fun(*args, kwargs)
File "/opt/pag_01/pag_01-server/venv/lib/python3.5/site-packages/celery/app/trace.py", line 641, in protected_call
return self.run(*args, kwargs)
File "/opt/pag_01/pag_01-server/pagure/lib/tasks_utils.py", line 36, in decorated_function
return function(self, session, *args, kwargs)
File "/opt/pag_01/pag_01-server/pagure/lib/tasks.py", line 341, in update_git
result = pagure.lib.git._update_git(obj, project)
File "/opt/pag_01/pag_01-server/pagure/lib/git.py", line 290, in _update_git
tempclone.push("pagure", "master", internal="yes")
File "/opt/pag_01/pag_01-server/pagure/lib/git.py", line 1055, in push
"Remote hook declined the push: %s" % "\n".join(remotes)
pagure.exceptions.PagurePushDenied: Remote hook declined the push: Traceback (most recent call last):
File "hooks/pre-receive", line 19, in <module>
import pagure.lib
ImportError: No module named pagure.lib