2018-05-02 22:05 CRITICAL task          imdb            BUG: Unhandled error in plugin list_remove: 400 Client Error: Bad Request for url: https://www.imdb.com/list/_ajax/watchlist_has
Traceback (most recent call last):
  File "c:\python27\lib\site-packages\flexget\task.py", line 486, in __run_plugin
    return method(*args, **kwargs)
  File "c:\python27\lib\site-packages\flexget\event.py", line 23, in __call__
    return self.func(*args, **kwargs)
  File "c:\python27\lib\site-packages\flexget\plugins\output\list_remove.py", line 45, in on_task_output
    thelist -= task.accepted
  File "c:\python27\lib\_abcoll.py", line 356, in __isub__
    self.discard(value)
  File "c:\python27\lib\site-packages\flexget\plugins\list\imdb_list.py", line 300, in discard
    cookies=self.cookies).json()
  File "c:\python27\lib\site-packages\requests\sessions.py", line 570, in post
    return self.request('POST', url, data=data, json=json, **kwargs)
  File "c:\python27\lib\site-packages\flexget\utils\requests.py", line 248, in request
    result.raise_for_status()
  File "c:\python27\lib\site-packages\requests\models.py", line 929, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
HTTPError: 400 Client Error: Bad Request for url: https://www.imdb.com/list/_ajax/watchlist_has