auto_unfollow_nonfollowers() crashes for certain suspended user about twitterfollowbot HOT 4 OPEN

from TwitterFollowBot import TwitterBot

my_bot = TwitterBot("/root/twitterfollowbot/configbot.txt")
my_bot.sync_follows()
my_bot.auto_unfollow_nonfollowers()

Choosing time between 10 and 30 - waiting 30 seconds before action
Unfollowed 1071444127
Choosing time between 10 and 30 - waiting 23 seconds before action
Traceback (most recent call last):
  File "/root/twitterfollowbot/unfollow.py", line 5, in <module>
    my_bot.auto_unfollow_nonfollowers()
  File "/usr/local/lib/python2.7/dist-packages/TwitterFollowBot/__init__.py", line 404, in auto_unfollow_nonfollowers
    self.TWITTER_CONNECTION.friendships.destroy(user_id=user_id)
  File "/usr/local/lib/python2.7/dist-packages/twitter/api.py", line 308, in __call__
    return self._handle_response(req, uri, arg_data, _timeout)
  File "/usr/local/lib/python2.7/dist-packages/twitter/api.py", line 315, in _handle_response
    handle = urllib_request.urlopen(req, **kwargs)
  File "/usr/lib/python2.7/urllib2.py", line 154, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/lib/python2.7/urllib2.py", line 429, in open
    response = self._open(req, data)
  File "/usr/lib/python2.7/urllib2.py", line 447, in _open
    '_open', req)
  File "/usr/lib/python2.7/urllib2.py", line 407, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.7/urllib2.py", line 1241, in https_open
    context=self._context)
  File "/usr/lib/python2.7/urllib2.py", line 1198, in do_open
    raise URLError(err)
urllib2.URLError: <urlopen error [Errno -3] Temporary failure in name resolution>