Help with BackGround Image on iPad!

My background image does not appear on any ipads. Is there anything wrong with my code that prevents the backgroud image from appearing? It is fine on mobile and desktop but not ipad tablets. Please help! https://drdisabilityquotes.com/

The background image i’m talking about is the one with the logo, “truly independent” terminology, and the doctor images.

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