Sickrage error log

2015-02-01 20:48:42 Thread-74 :: Failed doing webui callback: Traceback (most recent call last):
  File "/home/media/sickrage/sickbeard/webserve.py", line 230, in async_call
    result = function(**kwargs)
  File "/home/media/sickrage/sickbeard/webserve.py", line 309, in index
    return self.redirect('/home/')
  File "/home/media/sickrage/sickbeard/webserve.py", line 191, in redirect
    super(BaseHandler, self).redirect(url, permanent, status)
  File "/home/media/sickrage/tornado/web.py", line 630, in redirect
    self.finish()
  File "/home/media/sickrage/tornado/web.py", line 892, in finish
    self.flush(include_footers=True)
  File "/home/media/sickrage/tornado/web.py", line 846, in flush
    start_line, self._headers, chunk, callback=callback)
  File "/home/media/sickrage/tornado/http1connection.py", line 385, in write_headers
    self._pending_write = self.stream.write(data)
  File "/home/media/sickrage/tornado/iostream.py", line 348, in write
    self._handle_write()
  File "/home/media/sickrage/tornado/iostream.py", line 800, in _handle_write
    _merge_prefix(self._write_buffer, num_bytes)
  File "/home/media/sickrage/tornado/iostream.py", line 1382, in _merge_prefix
    if len(deque) == 1 and len(deque[0]) <= size:
TypeError: object of type 'NoneType' has no len()