Lightroom catalogue file has disappeared after closing, but lrdata files remain. All backups saying that they are not writable and cannot be opened.

My Lightroom classic catalogue file has completely disappeared, file cannot be found, and all of the backups I have (on various devices) are not working. They are saying that the file is not writable and cannot be opened. Lightroom is working as I opened an old catalogue to test. It is this specific catalogue, and every single backup of it that I have that isnt there/wont open.

This catalogue opened fine quite literally twenty minutes ago. I was getting a lot of lag while waiting for a mask to load (this is normal, my computer is slow), so I closed lightroom. When I went back into the folder to open the file, it was not there, and all of the backups weren’t working.

I have: restarted my computer, scanned my drive for corruption, logged in/out of creative cloud.

Images below show what is happening perhaps better than I can explain.

Is it just better to create a new catalogue and import everything again? I have most RAW files still.