Problem Downloading

I purchased "A Will to Murder" but when I tried to download the zip file I got this message:
Your connection is not private
Attackers might be trying to steal your information from www.freeformgames.com.yali.mythic-beasts.com (for example, passwords, messages, or credit cards). Learn more
NET::ERR_CERT_COMMON_NAME_INVALID
What do I do now?

My response:

Best thing you can do is, if you haven't done so already, email freeformgames, the publishers of the game.

You can drop them a line at info "at" freeformgames.com

Or contact them via their Facebook page.

(I'll also draw their attention to it.)