[2016-08-08 17:29:09,334: E] [django.request] Internal Server Error: /admin/login/
Traceback (most recent call last):
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/core/handlers/exception.py", line 39, in inner
    response = get_response(request)
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/core/handlers/base.py", line 249, in _legacy_get_response
    response = self._get_response(request)
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/core/handlers/base.py", line 187, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/core/handlers/base.py", line 185, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/views/decorators/cache.py", line 57, in _wrapped_view_func
    response = view_func(request, *args, **kwargs)
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/contrib/admin/sites.py", line 377, in login
    return login(request, **defaults)
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/contrib/auth/views.py", line 47, in inner
    return func(*args, **kwargs)
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/views/decorators/debug.py", line 76, in sensitive_post_parameters_wrapper
    return view(request, *args, **kwargs)
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/utils/decorators.py", line 149, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/views/decorators/cache.py", line 57, in _wrapped_view_func
    response = view_func(request, *args, **kwargs)
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/contrib/auth/views.py", line 81, in login
    if form.is_valid():
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/forms/forms.py", line 169, in is_valid
    return self.is_bound and not self.errors
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/forms/forms.py", line 161, in errors
    self.full_clean()
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/forms/forms.py", line 371, in full_clean
    self._clean_form()
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/forms/forms.py", line 398, in _clean_form
    cleaned_data = self.clean()
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/contrib/auth/forms.py", line 190, in clean
    self.user_cache = authenticate(username=username, password=password)
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/contrib/auth/__init__.py", line 74, in authenticate
    user = backend.authenticate(**credentials)
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/contrib/auth/backends.py", line 23, in authenticate
    if user.check_password(password) and self.user_can_authenticate(user):
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/contrib/auth/base_user.py", line 118, in check_password
    return check_password(raw_password, self.password, setter)
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/contrib/auth/hashers.py", line 62, in check_password
    setter(password)
  File "/home/rocky/dev/projects/iadvantage/rentals/venv/lib/python3.5/site-packages/django/contrib/auth/base_user.py", line 117, in setter
    self.save(update_fields=["password"])
TypeError: save() got an unexpected keyword argument 'update_fields'