Some categories doesn´t show on home page

I want to create a category called Restaurants but it doesn´t show on home page. If a create other category with a randon name (eg: aaaxyz) it shows at home page. If a try to acces the category using it´s url it works. You can see at http://service.curitibainenglish.com.br/ under Hospitality
http://service.curitibainenglish.com.br/hospitality/restaurants/
http://service.curitibainenglish.com.br/hospitality/korean-restaurants/