Invalid Images Facebook

[Emagine74]

I'm working on getting the FB Shopping Channel setup and it seems that it doesn't like any of the images of my products. Can anyone help me out with what could be causing this? I can't imagine every image on my products are wrong. Is there some way to fix these in bulk since updating each item would be very tedious. My main page is www.pressmarks.com

Thanks

[RelovedPedals]

I'm having the same issue. All of my images seem to make the Facebook criteria, but they're still not being accepted. Any help from anyone?