Header Image issue with menu

Hi there.

We had a image work like a header image, with the menu icons and logo inside of the image (as seen on about, menu and contact pages).

For some strange reason it has changed without me touching it, so that the menu is now a seperate bar – and not inside the background. This means you can’t see the white logo and what was previously the white menu text (turned it black so i could see it for the time being).

Can you please advise how to fix this issue.

Cheers
Lara

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