Sorry to those who had problems. It seemed to be collisions when multiple people were buying product at the same time. It takes items out of inventory when you click add to cart and then adds it back if you do not complete the order within a certain amount of time. Kind of like being at the grocery store, putting something in your cart, then it is not on the shelf. Only you look at the shelf, see it, and then someone sneaks it away only to return it later.
If anyone was prevented from ordering, send me a PM with your email and I will send to you a paypal invoice. Note that I am not sure how that works, so I might have to ask for the mailing address. Not sure if paypal will give it to me.
BTW: 2 left and two hours to go. Thank you all so very much. Spent my 50ith doing what I love to do in the place i love to do it. Life could not be better. Well, OK there is the lottery. That could make it better.