下图中同时在运行的策略rb2210合约就是正常的，MA209合约行情录制就断掉了，数据库中去检索也确实没录上，也没有报错，有大神知道是什么原因嘛。

为啥我这个y2205合约无法平仓呢？手动下单也不行。下单就报错，有大神知道问题出在哪里了嘛？

Traceback (most recent call last):
File "D:\VNPY\Lib\site-packages\vnpy\trader\ui\widget.py", line 969, in send_order
self.main_engine.send_order(req, gateway_name)
File "D:\VNPY\Lib\site-packages\vnpy_paperaccount\engine.py", line 191, in send_order
active_orders = self.active_orders[order.vt_symbol]
KeyError: 'y2205.DCE'

sqlite里录制的数据量也是够的

是什么原因呢？有大师知道吗？

为啥我这个回测策略初始化还未完成，就开始产生交易信号了?

为什么我每次重启VNPY订阅的行情都是失败，要重新手动去加载一遍。

Traceback (most recent call last):
File "d:\vn\lib\site-packages\vnpy\trader\ui\mainwindow.py", line 281, in open_widget
widget = widget_class(self.main_engine, self.event_engine)
File "d:\vn\lib\site-packages\vnpy_ctastrategy\ui\widget.py", line 38, in init
self.cta_engine.init_engine()
File "d:\vn\lib\site-packages\vnpy_ctastrategy\engine.py", line 112, in init_engine
self.load_strategy_data()
File "d:\vn\lib\site-packages\vnpy_ctastrategy\engine.py", line 831, in load_strategy_data
self.strategy_data = load_json(self.data_filename)
File "d:\vn\lib\site-packages\vnpy\trader\utility.py", line 100, in load_json
data = json.load(f)
File "d:\vn\lib\json__init.py", line 296, in load
parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
File "d:\vn\lib\json\init__.py", line 348, in loads
return _default_decoder.decode(s)
File "d:\vn\lib\json\decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "d:\vn\lib\json\decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 67 column 20 (char 1409)

难道是我的代码错了？有大神帮忙看看嘛？

simnow网站打不开了是怎么回事？没注册过，现在无法配置simnow账号了，无法进行策略回测。