AssertionError: Teamspeak3User object can't be deleted

Created by: Captainthrills

Exception running validate_user for services module teamspeak3 on user <user>

Traceback (most recent call last):
  File "<root folder>/services/tasks.py", line 48, in validate_services
    svc.validate_user(user)
  File "<root folder>/services/modules/teamspeak3/auth_hooks.py", line 36, in validate_user
    self.delete_user(user, notify_user=True)
  File "<root folder>/services/modules/teamspeak3/auth_hooks.py", line 27, in delete_user
    return Teamspeak3Tasks.delete_user(user, notify_user=notify_user)
  File "<root folder>/services/modules/teamspeak3/tasks.py", line 30, in delete_user
    user.teamspeak3.delete()
  File "/usr/local/lib/python2.7/dist-packages/django/db/models/base.py", line 953, in delete
    (self._meta.object_name, self._meta.pk.attname)
AssertionError: Teamspeak3User object can't be deleted because its user_id attribute is set to None.