抛出异常：util.exception.Con_DB_Fail: <exception str() failed>

[JasonHuangjia]

Traceback (most recent call last):
File "IPProxy.py", line 4, in
from api.apiServer import start_api_server
File "F:\IPProxyPool-master\api\apiServer.
py", line 9, in
from db.DataStore import sqlhelper
File "F:\IPProxyPool-master\db\DataStore.p
y", line 17, in
raise Con_DB_Fail
util.exception.Con_DB_Fail: <exception str() failed>