problem of corrupted videos

Hello;

yesterday I was editing a video on adobe premiere pro as usual everything went well then I went to eat.
When I came back, I opened my project and saw that some videos were no longer linked to any media, which I found strange because I hadn't moved or renamed any files.

So I tried to link the missing media but I couldn't, the videos had become corrupted whereas they were working fine before.

I tried re-downloading the rushes that didn't work, but even when I re-downloaded them, they remained corrupted.

The next day it was 100% of the videos that had become corrupt in this project but in all my adobe projects 100%. At first I thought it was a hard disk problem but no because the corrupted videos are only those present in adobe projects.

I cleared the media cache and a small part of the videos came back normal but many others remained corrupted and every time I import a working video into adobe it becomes corrupted.

I would like to point out that I have reloaded the application and it has saved some of my projects but it has worsened other projects that I had already managed to restore.

I'm fed up, I can't work any more, I can't find any solutions.