You do not have a link list with a handle set to sdh-x-play, or you do and it's empty. Go ahead and create a link list called SDH x PLAY 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 sdh-x-play.

@fishnyc22 .section-header { text-align: center; }