if user name changed,will 'Internal Server Error'

[liyujiang-gzu]

ChangedenCZD changed to Chans-Open-Source, such as:
http://githubbadges.com/star.svg?user=ChangedenCZD&repo=vue-apis&background=007ecg&color=bbb&style=flat [Internal Server Error]
http://githubbadges.com/star.svg?user=Chans-Open-Source&repo=vue-apis&background=007ecg&color=bbb&style=flat

but this is OK:
https://img.shields.io/github/stars/ChangedenCZD/vue-apis.svg
https://img.shields.io/github/stars/Chans-Open-Source/vue-apis.svg