It reads, Lightroom catalog 'lightroom 5 catalog' is corrupt and cannot be used or backed up until it is repaired.
the repair operation may taklee several minutes to complete and should not be interrupted whi in progress.
a message with further instructions will be displayed when the repair process is complete.
I hit the 'repair catalog', and it tells me it is unsucessful.
I am NOT a tech savy person at all, and now have no idea what to do.