gitlab-artifact-cleanup script unable to delete some artifacts #217

The script worked fine on most projects but not this last one.
Here is the error we get.
powerserver7 / Worklist
Traceback (most recent call last):
File "/opt/gitlab-artifact-cleanup/gitlab-artifact-cleanup", line 181, in
main()
------ more logs-----
------ more logs-----
File "/usr/local/lib/python2.7/dist-packages/python_gitlab-0.15.1-py2.7.egg/gitlab/init.py", line 392, in _raw_list
results.extend(self.list(cls, **args))
File "/usr/local/lib/python2.7/dist-packages/python_gitlab-0.15.1-py2.7.egg/gitlab/init.py", line 468, in list
return self._raw_list(url, obj_class, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/python_gitlab-0.15.1-py2.7.egg/gitlab/init.py", line 392, in _raw_list
results.extend(self.list(cls, **args))
File "/usr/local/lib/python2.7/dist-packages/python_gitlab-0.15.1-py2.7.egg/gitlab/init.py", line 468, in list
return self._raw_list(url, obj_class, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/python_gitlab-0.15.1-py2.7.egg/gitlab/init.py", line 374, in _raw_list
r = self.raw_get(path, **params)
File "/usr/local/lib/python2.7/dist-packages/python_gitlab-0.15.1-py2.7.egg/gitlab/init.py", line 360, in _raw_get
"Can't connect to GitLab server (%s)" % e)
gitlab.exceptions.GitlabConnectionError: Can't connect to GitLab server (maximum recursion depth exceeded)

And this is our system info.
System information
System: Ubuntu 14.04
Current User: git
Using RVM: no
Ruby Version: 2.3.1p112
Gem Version: 2.6.6
Bundler Version:1.13.6
Rake Version: 10.5.0
Sidekiq Version:4.2.1

GitLab information
Version: 8.14.4
Revision: 3ea6c8d
Directory: /opt/gitlab/embedded/service/gitlab-rails
DB Adapter: postgresql
URL:
HTTP Clone URL:
SSH Clone URL:
Using LDAP: yes
Using Omniauth: no

GitLab Shell
Version: 4.0.3
Repository storage paths:

• default: /var/opt/gitlab/git-data/repositories
  Hooks: /opt/gitlab/embedded/service/gitlab-shell/hooks/
  Git: /opt/gitlab/embedded/bin/git

Please help