header and layerslider z-index

Hi guys,

I needed to install a plugin for popups (pop up maker) for WP.
After setting up the pop up is hidded behind the menu bar and the layer slider.

I found a post in your forums (http://support.skywarriorthemes.com/forums/topic/header-overlapping-things/) but it is for a different template and it is not clear where he changed it.

Could you point me to the template where I can change this?

The z-index value of my pop up is very high so it should actually show above everything else.

Thanks in advance,
Leon