Problem with CR2 canon

Hi,
I have a problem with my CR2 folder, since yesterday. Everything was running smoothly but I suddenly got a weird green tint when I open them. I found some similar issues for Nikon, but could not fine a solution to my problem.


I could not tell why. Some CR2 opened fine, others do that. Are they damaged or corrupted?
Thank you. Best wishes.
Kévin.