You do not have a link list with a handle set to strength-and-conditioning, or you do and it's empty. Go ahead and create a link list called Strength and Conditioning 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 strength-and-conditioning.

Just added to your wishlist:
My Wishlist
Just added to your cart:
My Cart