I recently logged back on to update my New Leaf catalog. My profile reads that I have 790 items logged, but when I go to my catalog there is nothing logged at all. Is there any way to restore what's been lost?
You've been a victim of the dreaded Catalog Archiver, a job that still appears to be running. It clears out all the items that you entered in your catalog, but it doesn't reset the counter for the total number of items; that's updated any time you make a change in your catalog. So that's why it still showed the 790 items. I see you've already started filling in your catalog again. Good idea, as restoring it isn't possible.
It appears to be very difficult to squash the catalog archiver. This issue has been brought up before, and I'll bring it up again. Hope it helps this time.
If you don't login for quite a while, your catalog will be deleted archived again. I've asked Jader to kill the catalog archiver job, and hopefully he will do that soon. If not, please login once in a while, and your catalog will remain.