2018-10-15 19:22:21,375 [Level 99]: plugins.blueset.wechat.WeChatChannel (__init__.console_qr_code; __init__.py:206)
    Successfully logged in.
Loading the contact, this may take a little while.
Traceback (most recent call last):
  File "/home/ubuntu/miniconda3/bin/ehforwarderbot", line 11, in <module>
    sys.exit(main())
  File "/home/ubuntu/miniconda3/lib/python3.6/site-packages/ehforwarderbot/__main__.py", line 202, in main
    init()
  File "/home/ubuntu/miniconda3/lib/python3.6/site-packages/ehforwarderbot/__main__.py", line 83, in init
    coordinator.add_channel(cls(instance_id=instance_id))
  File "/home/ubuntu/miniconda3/lib/python3.6/site-packages/efb_wechat_slave/__init__.py", line 174, in __init__
    self.authenticate('console_qr_code')
  File "/home/ubuntu/miniconda3/lib/python3.6/site-packages/efb_wechat_slave/__init__.py", line 519, in authenticate
    logout_callback=self.exit_callback)
  File "/home/ubuntu/miniconda3/lib/python3.6/site-packages/efb_wechat_slave/wxpy/api/bot.py", line 86, in __init__
    loginCallback=login_callback, exitCallback=logout_callback
  File "/home/ubuntu/miniconda3/lib/python3.6/site-packages/itchat/components/register.py", line 32, in auto_login
    loginCallback=loginCallback, exitCallback=exitCallback)
  File "/home/ubuntu/miniconda3/lib/python3.6/site-packages/itchat/components/login.py", line 73, in login
    self.get_contact(True)
  File "/home/ubuntu/miniconda3/lib/python3.6/site-packages/itchat/components/contact.py", line 285, in get_contact
    seq, batchMemberList = _get_contact(seq)
  File "/home/ubuntu/miniconda3/lib/python3.6/site-packages/itchat/components/contact.py", line 281, in _get_contact
    j = json.loads(r.content.decode('utf-8', 'replace'))
  File "/home/ubuntu/miniconda3/lib/python3.6/json/__init__.py", line 354, in loads
    return _default_decoder.decode(s)
  File "/home/ubuntu/miniconda3/lib/python3.6/json/decoder.py", line 339, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/home/ubuntu/miniconda3/lib/python3.6/json/decoder.py", line 357, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)