Sadly, this is an old version of RPG Maker (VX Ace), so it doesn't support Macs natively. You should be able to get it to run through emulation, but that's not something I can do from my end. Here is a tutorial for one way to do it:
https://forums.rpgmakerweb.com/index.php?threads/how-to-play-any-rpgmaker-on-mac...