super new to this, extremly puzzled.. missing parts of site?

Hi,

First, I'd like to say that I'm very new to coding/dev so this may very well be an easy fix. My apologies if it's something obvious.

My issue is this- I'm working on a Wordpress theme for my blog and during the customization process, I lost the "slider" and prev/next bars for the slider. Any and all help regarding this issue would be greatly appreciated.

My site.