Traceback fra når jeg prøver å få ticket

gistfile1.txt

2012-07-22T15:13:08,505 [ERROR] [hoopla.sync              ] Unhandled exception in messageReceived. Traceback follows
Traceback (most recent call last):
  File "/Users/gronnbeck/Development/hoopla/backend/hoopla/sync.py", line 157, in messageReceived
    yield self._handle_subscribe(message['subscribe'])
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/twisted/internet/defer.py", line 1020, in _inlineCallbacks
    result = g.send(result)
  File "/Users/gronnbeck/Development/hoopla/backend/hoopla/sync.py", line 170, in _handle_subscribe
    if organization_ids - set(id for id, identifier, is_admin in self.get_current_user().get('organizations')):
TypeError: 'NoneType' object is not iterable