mopidy-audioaddict error with mopidy 2.1.0

gistfile1.txt

### the mopidy Error when trying to play a stream from https://jazzradio.com 

ERROR    2018-02-23 13:46:35,436 [1956:Core-12] mopidy.core.playback
  AudioAddictBackend backend caused an exception.
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/mopidy/core/playback.py", line 423, in _change
    if not backend.playback.change_track(pending_tl_track.track).get():
  File "/usr/local/lib/python2.7/dist-packages/pykka/threading.py", line 52, in get
    compat.reraise(*self._data['exc_info'])
  File "/usr/local/lib/python2.7/dist-packages/pykka/compat.py", line 12, in reraise
    exec('raise tp, value, tb')
  File "/usr/local/lib/python2.7/dist-packages/pykka/actor.py", line 201, in _actor_loop
    response = self._handle_receive(message)
  File "/usr/local/lib/python2.7/dist-packages/pykka/actor.py", line 295, in _handle_receive
    return callee(*message['args'], **message['kwargs'])
  File "/usr/local/lib/python2.7/dist-packages/mopidy/backend.py", line 245, in change_track
    uri = self.translate_uri(track.uri)
  File "/usr/local/lib/python2.7/dist-packages/mopidy_audioaddict/actor.py", line 123, in translate_uri
    return _unwrap_stream(channel['streamurl'], timeout=self._config['stream']['timeout'], scanner=self._scanner, requests_session=self._session)
  File "/usr/local/lib/python2.7/dist-packages/mopidy_audioaddict/actor.py", line 161, in _unwrap_stream
    scan_result.mime.startswith('text/') or
AttributeError: 'NoneType' object has no attribute 'startswith'
WARNING  2018-02-23 13:46:35,442 [1956:Core-12] mopidy.core.tracklist
  Track is not playable: audioaddict:channel:86
  
  
  ### /etc/mopidy/mopidy.conf section for Audioaddict: 
[audioaddict]
enabled = true
username = <registered user email>
password = <password> 
jazzradio = true
quality = 320k
difm = false
radiotunes = false
rockradio = false
frescaradio = false