celery long term bug

[2019-09-07 00:06:03,892: ERROR/ForkPoolWorker-1] Task Inquires parsing[7a629d57-5a93-4ab1-ad34-0522447766d9] raised unexpected: ConnectionResetError(104, 'Connection reset by peer')
Traceback (most recent call last):
  File "/home/znak/znak/znak/server/.venv/lib/python3.6/site-packages/celery/app/trace.py", line 385, in trace_task
    R = retval = fun(*args, **kwargs)
  File "/home/znak/znak/znak/server/.venv/lib/python3.6/site-packages/celery/app/trace.py", line 648, in __protected_call__
    return self.run(*args, **kwargs)
  File "/home/znak/znak/znak/server/apps/mark/tasks.py", line 47, in parse_inquires
    helper.parse_inquires()
  File "/home/znak/znak/znak/server/apps/mark/helpers/uipv.py", line 283, in parse_inquires
    self.parse_pages(res2.content)
  File "/home/znak/znak/znak/server/apps/mark/helpers/uipv.py", line 239, in parse_pages
    self.parse_page_objects(res.content, bulid)
  File "/home/znak/znak/znak/server/apps/mark/helpers/uipv.py", line 228, in parse_page_objects
    self.parse_object(res.content, obj_url, obj_keywords, bulid)
  File "/home/znak/znak/znak/server/apps/mark/helpers/uipv.py", line 187, in parse_object
    value = self.get_field(soup, field)
  File "/home/znak/znak/znak/server/apps/mark/helpers/uipv.py", line 158, in get_field
    return self.get_or_create_image(img['src'])
  File "/home/znak/znak/znak/server/apps/mark/helpers/uipv.py", line 129, in get_or_create_image
    img_open = urlopen(image_url)
  File "/usr/lib/python3.6/urllib/request.py", line 223, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/lib/python3.6/urllib/request.py", line 526, in open
    response = self._open(req, data)
  File "/usr/lib/python3.6/urllib/request.py", line 544, in _open
    '_open', req)
  File "/usr/lib/python3.6/urllib/request.py", line 504, in _call_chain
    result = func(*args)
  File "/usr/lib/python3.6/urllib/request.py", line 1346, in http_open
    return self.do_open(http.client.HTTPConnection, req)
  File "/usr/lib/python3.6/urllib/request.py", line 1321, in do_open
    r = h.getresponse()
  File "/usr/lib/python3.6/http/client.py", line 1331, in getresponse
    response.begin()
  File "/usr/lib/python3.6/http/client.py", line 297, in begin
    version, status, reason = self._read_status()
  File "/usr/lib/python3.6/http/client.py", line 258, in _read_status
    line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
  File "/usr/lib/python3.6/socket.py", line 586, in readinto
    return self._sock.recv_into(b)
ConnectionResetError: [Errno 104] Connection reset by peer