Layer slider

I am using a layer slider with my highend theme. Everything was working fine.

Today I viewed my website in internet explorer, firefox and google chrome. The layer slider sticks on the first or second slide and does not progress and can’t be pushed onto the next slide.

Secondly in the theme Highend I set the layer slider to show on the home page. If I go to the home page options by trying to edit the page, there is NO OPTION to add a layer slider anymore ONLY to add a revolution slider

Thanks