latest shits on fire yo

Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\django\core\handlers\base.py", line 132, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Python34\lib\site-packages\django\views\decorators\csrf.py", line 58, in wrapped_view
    return view_func(*args, **kwargs)
  File "C:\Python34\lib\site-packages\rest_framework\viewsets.py", line 87, in view
    return self.dispatch(request, *args, **kwargs)
  File "C:\Python34\lib\site-packages\rest_framework\views.py", line 466, in dispatch
    response = self.handle_exception(exc)
  File "C:\Python34\lib\site-packages\rest_framework\views.py", line 463, in dispatch
    response = handler(request, *args, **kwargs)
  File "C:\Python34\lib\site-packages\rest_framework_expander\views.py", line 65, in list
    adapter.instance = optimizer.to_optimized_objects(adapter.instance)
  File "C:/Users/Andy/Work/git/backend\api\views\optimizers\channel.py", line 84, in to_optimized_objects
    post_feed = fetch_latest_objects(Post, 'channel_id', objects, {'state': Post.PUBLISHED}, limit=3)
  File "C:/Users/Andy/Work/git/backend\api\views\optimizers\common.py", line 33, in fetch_latest_objects
    outer_query = inner_query.wrap().where(rank__lte=limit)
  File "C:\Python34\lib\site-packages\querybuilder\query.py", line 1419, in wrap
    field_names = self.get_field_names()
  File "C:\Python34\lib\site-packages\querybuilder\query.py", line 1221, in get_field_names
    field_names.extend(table.get_field_names())
AttributeError: 'NoneType' object has no attribute 'get_field_names'