You do not have a link list with a handle set to supporting-our-communities-impacted-by-covid-19, or you do and it's empty. Go ahead and create a link list called Supporting our Communities Impacted by COVID-19 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 supporting-our-communities-impacted-by-covid-19.