repeating catalog corrupt

[michal92972975]

HELP! Lightroom classic keep corrupting all my catalogs.
my main catalog was corrupted and can't be fixed. afetr 3 days of using my backup catalog, it was also corrupted, and on the same day another catalog got corrupted.
1. can these catalogs be fixed?
2. what could cause this repeating bug??

[dj_paige]

This problem is not caused by Lightroom Classic. This is your hard-disk malfunctioning. Run diagnostics on the hard disk. Probably you will need to replace it. 

You need to put a good copy of your catalog on a different hard disk.

[Abambo]

I agree with @dj_paige, this smells a hell of a lot like a hardware failure.