Hello again !
I actually had the game in my applications folder so I don't know why it didn't work. But I just re download the game and put it in my applications folder again, and that time it worked ! I still had some problems, like with some parts of the game who were going very slowly, and I couldn't save my game (don't know if it was normal cause it was just the intro). I think I will download the itch.io app for more facilities.
Thanks again for your help and for your wonderful game !
