Illustrator Files display icon only and won't open at all

[sarahlwilson14]

Hi all! I have a weird questions and I've searched and searched with no avail so here I am!

I have files that won't open at all, in my finder all you can see is the AI icon, when I hit quick view is just shows a file icon, and when I double click to open it it does absolutely nothing, no spinning beachball, nothing. When I right-click to open it, it also does nothing. 

It's not all of my files, and its not specifically older or newer ones, it seems like a random spattering of files that I just can't open. I've even edited some of them recently!

I have tried: 

Restarting my computer, updating my illustrator app, restarting the creative cloud, opening the files with a different app, and I tried moved the files to an external harddrive.

I am using Illustrator 2021, I have a MacBook Air (from 2020), and I'm running Big Sur. I also do a Mac clean up once a week to make sure my scratch disk has enough memory.

I'm so frustrated! Any advice would help, thank yoU!

[Ton Frederiks]

I always suspect applications that clean up your Mac.

I hope you have backups of your files.