jquery thumbnails gallery automatically converting into 2 pages? please help!

I have WPFolio Child Theme which comes with a great thumbnail feature. But for some strange reason my jquery thumbnail gallery on this page has automatically converted into a second page (go to the bottom where the arrow points), also taking along with it two of the bottom thumbnails. This does not make sense since there is enough space for all the thumbnails to just be on one page. I’ve tried deleting some of the posts that are attached to the thumbnails but that does not seem to be the issue. Can someone please help me to solve where the problem is? why are my thumbnails being transported into a second page? is this a coding issue? or did i make some kind of coding mistake in one of my posts?

I really appreciate any help, thank you!