Ok.. I am waiting to hear maybe HOW this happened, all I can tell you now is that it did, and what happened when trying to approve the images.
Somehow.. A user uploaded images to an album that no longer exists..
Images went to album 1389, which there is none..
When approving the image in the modCP, this happened..
SELECT COUNT(*) as images, SUM(comments) as comments, SUM(comments_queued) as comments_queued FROM gallery_images WHERE img_album_id= AND approved=1