Home Banner widget area not showing up

The Home Banner widget area has stopped working on my website (assume as a result of the theme upgrade)? I also noticed the Home Banner widget area doesn’t show up with the other Church widget areas in the Widgets section of the Customizer.

The website is .

The original content of the Home Banner widget area is a Meta Slider shortcode.

I attempted disabling plugins and putting different content in the Home Banner widget area. Nothing has worked.

Any help is appreciated!