Phantom slide

I currently tried to update my slideshow on my homepage and now it has a blank spot in between two slides. How can I fix this? If i reset the slideshow will it delete my current pictures upload in my library? My site is http://www.dukesfoundation.org. I have a phantom page between the 12 and 14 slide on my homepage.

https://ww.wp.xz.cn/plugins/easing-slider/