Considering how often Lightroom Catalogues become corrupted these days compared with years past, I really feel that Adobe needs to lift its game on how you restore a corrupted catalogue from your backup files. Currently it is a complete faff as you have to manually find your backup file, then copy it over the corrputed one wherever that is.
My suggestion:
1) "Your current catalogue has become corrupted, would you like to restore from the most recent backup?"
2) "Yes"
3) ...restores catalogue from backup