Error after install

[houjimmy]

Hello, I'm a new user experimenting the app. I've got an error when after I've installed and configured it.

Here is the error I've got in my Linux terminal:

Updating bitmessage info.
http://0.0.0.0:8080/
ERROR:root:Exception getting channels: TypeError('expected string or buffer',)
Traceback (most recent call last):
  File "/home/daniel/bitboard/bitmessage_gateway.py", line 81, in updateChans
    addresses = json.loads(straddr)['addresses']
  File "/usr/lib/python2.7/json/__init__.py", line 339, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python2.7/json/decoder.py", line 364, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
TypeError: expected string or buffer
ERROR:root:Exception in gateway thread: TypeError('expected string or buffer',)

Any of you have an idea of why this is happening?