Image which I cann't change

I have a problem. I added the book, then came out of nowhere photo of a woman, instead of cover and I cann't delete it or change to another. You can fix this?

www.listal.com/book/moc-szesciorga
www.listal.com/book/moc-szesciorga/pictures

yes this has been brought up before it seems to be effecting a wide variety of things here on listal

www.listal.com/topic/primary-image-problems