first page "cannot display the webpage"
 

Gentlemen
I have been upgrade the forum to Version 3.8.5 ,it was working well for 4 days after that appearance problem in Slow to open pages also the first page do not appear only after several attempts, where I get the the following message "cannot display the webpage"
Yesterday, In the last archive search engine Google says there is virus in the site :
(This site may harm your computer)
See the attached photo

I have been uplooad new Files Forum and re-installation ,got improved, but still the problem of the fall of the first page when I and visitors browse between pages Forum get following message "cannot display the webpage"

Please help me .. What is the problem and how to solve?
try my site
http://www.banimalk.net/vb/
Attached Images

• http://vb.ma7room.com/jpg.gif ver..jpg‎ (54.3 KB)