Thanks so much for the reply! I'll keep that in mind - I was able to get it working again, I don't know what exactly I did but the OS allowed it and is happy again so we take that as a win. I was able to start another playthrough after redownloading my DLC purchases and loving every minute of it as always!
Crossing my fingers for the Mac approval; I was really happy when I saw I could download it here. it's hard to get my favorite games on my laptop as a lot of them are locked to Windows, so having Our Life on it has been really amazing. Thank you for creating a Mac compatible version!