le_client = _init_le_client(args, config, authenticator, installer)
  File "/home/user1/.local/share/letsencrypt/local/lib/python2.7/site-packages$
    acc, acme = _determine_account(args, config)
  File "/home/user1/.local/share/letsencrypt/local/lib/python2.7/site-packages$
    accounts = account_storage.find_all()
  File "/home/user1/.local/share/letsencrypt/local/lib/python2.7/site-packages$
    accounts.append(self.load(account_id))
  File "/home/user1/.local/share/letsencrypt/local/lib/python2.7/site-packages$
    regr = messages.RegistrationResource.json_loads(regr_file.read())
  File "/home/user1/.local/share/letsencrypt/local/lib/python2.7/site-packages$
    return cls.from_json(loads)
  File "/home/user1/.local/share/letsencrypt/local/lib/python2.7/site-packages$
    return cls(**cls.fields_from_json(jobj))
  File "/home/user1/.local/share/letsencrypt/local/lib/python2.7/site-packages$
    cls._check_required(jobj)
  File "/home/user1/.local/share/letsencrypt/local/lib/python2.7/site-packages$
    ','.join(missing)))
DeserializationError: Deserialization error: The following field are required: $