I'm not seeing any option to click "yes" to accept any download on the site you list.
I am seeing the pop-over ad, requesting that adblock be disabled. This is to do with the site's settings - they obviously want you to see an ad or two to help pay the bills, I guess.
That you're getting a link to a download suggests that it might be worthwhile to run
adwcleaner - you may have installed something that has some unwanted baggage bundled with it.