Corrupt Catalogs

[joannar3322836]

I'm using the lastest verison of Lightroom Classic.  I've been editing Senior sessions - my last three sessions have all had corrupt catalogs and I had to start editing again from scratch.  Lightroom was not able to repair the catalogs when I attempted to reopen.  In all of these instances, Lightroom has crashed while I was working.  What could be causing this?  Lightroom is on my PC but my images and catalog are on an external.  

[dj_paige]

It is caused by a hardware malfunction, and the most likely culprit is a malfunctioning hard disk. Run diagnostic tests on your hard disk.

Also, try placing a new catalog on a different disk.