Mac Installation Issues

I'm sure it's a thoroughly discussed topic, but do hear me out

I have 2011 MacBook Pro currently running Sierra OSX. I've downloaded the Bitorrent Mac client two times and each time I try to start anything, whether it be the launcher or the WoW app directly, it gives me the message the application cannot open. Naturally, I looked to the forum to find a solution.

I've peered through some of the other guides for this issue, but they haven't been of much use since the items their asking for don't appear in my WoW Folder. One of the guides involves the alteration of an "installer" file, but I don't see it any of my files. The client installation went without a hitch on my PC, and I'm wondering what possible solutions are available.