There is a new version of the Mac wrapper, you can go here to download it:
https://eu.wargaming.net/support/de/products/wows/hot-issues/24823/
It's from our EU site but the link should be available to all players.
Give it a try and see how it works.
#anchorsaweigh
Our EU colleagues have uploaded a beta version of the Mac wrapper here:
https://eu.wargaming.net/support/de/products/wows/hot-issues/24823/
It appears to be more stable from early reports, give it a try and see how it works.
On the side of the "Play" button, there is a side menu. If you click on it, there will be some options that appear:
Choose the correct bit architecture of the client you are running on Windows 7 and see if it will launch then.
devtrackers.gg