Slider Section on Home Page Misformatted W/ Default Image Change

Hi!

From the Customizer > Homepage Section > Slider Section, I changed the ‘Image:’ from the default theme’s image to a new image, and the entire section now appears completely misformatted in the upper left-hand corner of the home page.

I’ve tried different images, deactivation and reactivating all plugins, reinstalling WordPress, reinstalling the theme and nothing has fixed it. Please help!

Thanks!
Colby

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