Cant open database

[natan0j]

after launching eshop im trying to run dotnetcrawler sample but i receive error:

"Unhandled Exception: System.AggregateException: One or more errors occurred. (An error occurred while updating the entries. See the inner exception for details.) ---> Microsoft.EntityFrameworkCore.DbUpdateException: An error occurred while updating the entries. See the inner exception for details. ---> System.Data.SqlClient.SqlException: Cannot insert the value NULL into column 'Name', table 'Microsoft.eShopOnWeb.CatalogDb.dbo.Catalog'; column does not allow nulls. INSERT fails.
The statement has been terminated."

How to fix that?