刚试的可以下载IF2006.CFFEX这类股指期货数据，但下载不了IO2006-C-3900.CFFEX这种股指期权数据
23:17:22 IO2006-C-3900.CFFEX-1m开始下载历史数据
23:17:22 数据下载失败，触发异常：
Traceback (most recent call last):
File "D:\VN Studio\lib\site-packages\vnpy\app\cta_backtester\engine.py", line 384, in run_downloading
data = rqdata_client.query_history(req)
File "D:\VN Studio\lib\site-packages\vnpy\trader\rqdata.py", line 165, in query_history
adjust_type="none"
File "D:\VN Studio\lib\site-packages\rqdatac\decorators.py", line 131, in wrap
return func(*args, **kwargs)
File "D:\VN Studio\lib\site-packages\rqdatac\services\get_price.py", line 148, in get_price
raise PermissionDenied("Not permit to get minbar price ")
rqdatac.share.errors.PermissionDenied: Not permit to get minbar price
