slider issue

Hi I need help with my website (www.theuabearfacts.com). The website is my school's online newspaper and I am having issues with the Slider on the Homepage. I am selecting to show 4 slides but the slideshow only demonstrates the first one. Do I need to use featured content in any way? I've tried everything I could think of but I don't know what's going on. The slideshow was working before, but it fell apart after I changed one of the images.