...
The Baker Spine theme features a new site-wide footer that can be customized with deep-link style menus and other available widgets.
...
Baker Spine Theme: How do I update an existing site to the Baker Spine Theme?
...
- If your site has custom CSS that is modifying the Spine Theme it may cause issues/conflicts with the style for the Baker theme. Custom CSS could be located in the "Edit CSS" tool under appearance, "Additional CSS" in the Customizer menu, or in some cases it could be added by a child theme.
OR 
...
...
Baker Spine Theme: How do I add and edit page banners?
...
To add deep link menus to your footer navigate to the Widget Admin interface (see above). Select the "Navigation Menu" widget on the left and drag it into the "Footer Widgets" on the right. Once you have the Navigation Menu widget in Footer Widgets you should be able to use the widget editor to select a menu to display. By default, menus entered in the footer will span the full with of the footer with each menu item (and child menu items) divided into columns.
Other widgets
Unlike menus (which stretch full width) additional widgets added to the footer will span horizontally across the footer in a column layout.