Can't import audio files

I’m using Cubase LE, actually a version that’s over 4 years old. It’s worked fine until tonight, no reason I can think of for the change. When I import a new audio file it asks if I want to replace it, as if it was already imported. If I click “yes” it seems like it is pulling it in then it is blank after completing. After doing that the actual file I was importing is then all but erased, just 5 blank seconds left. Not sure how to fix this but it’s obviously made it impossible to do any new projects.