What platform are you using? The game loads instantly so it's something else going on. If you're on PC you could try running as administrator. If you're on Android, you probably have version 11 and the game doesn't run on that one.
Hmm. It usually runs on Android 10 but in some rare cases, it doesn't. But there's nothing that can be done really, other than waiting for Unity or Google to give us a workaround to the latest changes they made.
I just encountered that on Android 11, Samsung A12. Not a gaming phone but it should handle it. Is it a change in Android or something, I've also noticed several older Renpy games off the App Store, like NomNomNami's games don't work on this phone either.
Android changed the way permissions for creating files work in a bid to make their phones more secure. Ended up making tons of apps just not work anymore. I have no way of fixing that through unity, so there isn't much I can do until Unity or Google come up with a solution.