Smart Slider in header

Hey I’m having issues placing the smart slider plugin in the header of my wepage.

I’ve created the slider to fill up the width of the page at 400px height and no matter how I place it in the website it breaks something. I’ve tried adding it straight into the code with a php(shortcode) that just places it somewhere beneath the body. I’ve tried to create a new widget area, but at best it places it over the site logo and menu. I even tried using the Elementor function of creating a new header, but that just breaks the site completely.

Any ideas?