按ss面板教程装的，但是运行sever.py时报错

[startwish]

这个是报错的内容
IPv6 support
Traceback (most recent call last):
File "server.py", line 74, in
main()
File "server.py", line 54, in main
if get_config().API_INTERFACE == 'mudbjson':
AttributeError: 'NoneType' object has no attribute 'API_INTERFACE'

[Ehco1996]

如果Python版本小于2.7 请升级