Threshonly

I have error on ArmA 2 :"DVD not found and blah blah". I downloaded the games through torrent. I added them on steam,tho. EDIT : Solved error with DVD. Still cant open DayZ.

But i have a problem with this one too. I press the download button and nothing happens. And i have path error,but also the path is correct.

Can someone find a solution for this kind of error? Or someone has already the solution? I switched my dns,i have my net framework updated,antivirus disabled,exception through firewall and still getting this error. Help please.