Unable to resolve service for type 'Data.IRestaurantsData' while attempting to activate 'OdeToFood.Pages.Restaurants.ListModel'.

Hi all,
I'm following the ASP.NET Core Fundamental course. Since module 2 section 9 the code was good (except for the Layout CSS which is not shared in the gitHub repo). When I added the page Setup.cs and the restaurants, my code returned the following error. Is there someone who can help me solving the problem?