Page comes up fine with my Win10 Firefox x64 DE system...came up instantly...did you have an incorrect link to start with?
I personally I think we have enough spyware crap in windows to mind to install such thing. If you want a chromium based browser use Vivaldi, use Opera, use even Chromium, but not Chrome
I opened both firefox and chrome and kat worked almost all the time except a few minutes, only thing i was behind a VPN with dns leaks fixed
I had some connection and certificate problems with kat.cr and kickass.to today - it works now, but slow ...
The Site is "Allegedly" under DDOS attacks and has been for some time. The choice of browser or OS doesn't make any difference. As the Site is constantly jumping locations the best option would be to change VPN location.
JUST USE GOOGLE CHROME BETA AS i said before as it's a chrome issue only also edge needs a update also and firefox is bloatware