I Can't open the 2nd page of my gallery on my home page

I have 12 posts on my site: creekwalkdesigns.net. I used to be able to arrow over to page two and page three of my gallery on my home page, but now the rotating wheel just keeps spinning when I try to go to page two and no new photos show up. I selected all of the photos to be “featured” photos because if I don’t there is a black box that shows up in my gallery where the photo should be. How many pages do I have to my gallary on my home page (4 photos each)? What do I need to do to go to my page two on my home page now? I was afraid that I had too many “featured” photos and that is why I couldn’t go to page two, but I’m not sure that’s the problem” If that is the problem and I can only have a limited number of photos in my gallary does that mean that that is the number of posts I can have at a time? If there is a limited number of photos in the gallery but I can have more posts, how do I do that because I added a thirteenth post at one time and it still added to my home page gallery view.