sorry for getting here late im on mac too and i just opened it a bunch of times and it worked eventually (I recommend pressing new game/continue as soon as it starts up)
That sounds frustrating! I had a similar issue when I first tried running it on Mac. For me, it took about 15 tries before it finally launched properly. Make sure you're right-clicking the app and selecting 'Open' instead of double-clicking - this helps bypass some of the macOS security restrictions. Also, after each failed attempt, wait a few seconds before trying again. Some users have reported that restarting their Mac helped as well. Fingers crossed it works for you soon!