Caroussel Images runs over header

Site URL: https://www.imanalias.com/bio

Hi guys,

This morning I added a Slideshow gallery to my page and I notice that when scrolling down it runs over the navigation bar.

If you look at the attached image you will see what I mean. Anyone knows how to fix it please? 

Thank you !!

Add this code to Design > Custom CSS

header.Header.Header--bottom {
    z-index: 99999999;
}

Thank you SOOOO MUCH!!!!!