If the Draft Dominator still shows data from previous years, you likely need to re-sync your league for the current season.
First, go to the More Tab -> Edit All My Leagues. You need to re-sync if your leagues have a previous year in red next to the name.
Just click the 'Sync and Info" Dropdown to the right of the league name, and then click "Renew for This Year's League.' You may need to sign out and back into your league if it gives you issues.
Let it load, and you should be good to go.