Unwanted Gallery Copy

I just noticed below my last gallery that I re-arranged as recently as yesterday, that there's now a copy of my gallery logo below it but it's saying there are 0 images in it. It was about 2 months ago that me and another photographer who was re-arranging our galleries photos discovered that in some kind of computer glitch or malfunction- we both had dozens of copies of our photos from the galleries we were working on in those galleries. Two of each. I experimented with a couple of these copies to delete them - and the originals were deleted too. I can't afford to take the risk of that happening with over 400 photos in this latest gallery. I seem to have problems whenever I try to re-arrange photos. I'm going to tech support to get them to fix this. Just a head's up to anyone else about this.