goddy空间中毒了！！谁帮忙下

shiling

访问我的网站发现打不开了：
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, support@supportwebsite.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

ftp登陆发现很多文件都被加上了.INFECTED后缀，我用了两年，第一次碰到这样的问题呀
我该怎么办？