Awast shows the virus in my webiste

HI

I am admin of www.justhahaha.com and www.pkcareer.com.
my user find the virus in my sites when ever they open, but there is no any virus in the above sites. I have checked from online websites and i have intalled antivirus in server and i scaned many time my site I didin’t find any virus. But avast shows the virus in my websites how can i solve this problem.

please tell me solutions of this problem…

Thanks

From Sucuri: Unable to properly scan your site. Unable to connect.