You do not have a link list with a handle set to promotions-1, or you do and it's empty. Go ahead and create a link list called Promotions on your Navigation page and populate that link list with links that point to collections, to see collections listed here. Make sure the link list also has a handle set to promotions-1.
- Choosing a selection results in a full page refresh.
- Press the space key then arrow keys to make a selection.