Black Bar on mobile view

Hi,

I have a problem with my website: Powerstream when viewing it on mobile, a black bar appears right above first Text block on my site, under menu bar.

On desktop everything works fine. I’m using Salient Theme.
Can anyone help me with removing this black bar?

Here are links with screenshots from mobile and desktop.
Mobile: https://ibb.co/pzXm4dN
Desktop: https://ibb.co/RPPnsmN

Thanks!

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