Can't open my anki cards: redownload the anki windows version while the old one was not removed

this is the error message that prompted up when I was trying to delete my sets. I tried to recover them first but for some reason I couldn’t do that… I am completely lost

I first downloaded it about 15 days ago and I want a chinese version of it so I went to anki China website download another one. Now both of them wont work

I cleared all of my documentation files on desk and then download a new one, it works now.