成交量为0，这是为什么？

#!/usr/bin/env python
#  -*- coding: utf-8 -*-
__author__ = 'heyongfu'
 from tqsdk import TqApi, TqAuth, TqSim, TqKq
import math
api = TqApi(web_gui=True, debug=True,account=TqKq(), auth=TqAuth("*********", "********"))
#api = TqApi(web_gui=True, debug=True, auth=TqAuth("*********", "*********"))
 order = api.insert_order(symbol="CFFEX.IC2108", direction="BUY", offset="OPEN",
                                 limit_price="FIVELEVEL", volume=1)
while order.status != "FINISHED":
    api.wait_update()
api.close()
 print("成交量:",order.volume_orign-order.volume_left)
print(dict(order))

提示信息为

2021-08-10 11:29:37 – INFO – 通知: 登录成功
2021-08-10 11:29:37 – INFO – 通知: 下单成功
2021-08-10 11:29:37 – INFO – 通知: 报单被服务器撤销

成交为0，

如果把

api = TqApi(web_gui=True, debug=True,account=TqKq(), auth=TqAuth("*********", "********"))
换成

api = TqApi(web_gui=True, debug=True, auth=TqAuth("*********", "*********"))
就没有问题