Client download link not working?

https://www.warmane.com/download

I wanted to try Onyxia, but the link on the download page doesn't seem to work.
The button remains "greyed out" regardless of the form selection across a few browsers.

Is there a .torrent file someone can share or something I'm missing to download?

You need a torrent client.

Thanks :) I usually use another box to torrent on so don't typically have a client installed on my PC.
Couldn't find a way to get a .torrent file so I just installed a client.