Header covers banner on desktop

I’m trying to use Simple Banner (excellent plugin btw!) for a header banner on my site. It shows up well on mobile. However, on desktop it covering up park of my website theme banner. The site is live right now. I’ve cleared the wordpress cache.

I’m currently using the Relative position, without any margin or header padding. Any input is greatly appreciated.

The page I need help with: [log in to see the link]