OSError: Device Closed

[bauerj]

I get the following Traceback when I try to start PyQuassel:

Plugin "plugins/pushbullet.py" loaded.
Traceback (most recent call last):
   File "./quasselbot.py", line 74, in <module>
     quasselClient.run()
   File "PyQuassel/quasselclient.py", line 269, in run
     self.createSession()
   File "PyQuassel/quasselclient.py", line 260, in createSession
     self.readClientLogin()
   File "PyQuassel/quasselclient.py", line 110, in readClientLogin
     data = self.stream.read()
   File "PyQuassel/qt.py", line 311, in read
     raise IOError('Device Closed')
 OSError: Device Closed

Any idea what could cause this? I'm running core 0.12.4 (90183ee)