Sorry to hear about the league sync issue you are experiencing. Please can you try the steps below, and if the issue persists, please reply and we'll get right on this:
- Go to the Edit Leagues screen. This is on the More menu in Draft Dominator, or under the Shield icon in League Dominator.
- Hit the Red X to the right of the relevant league host account to totally delete it.
- Hit the green "Add Leagues" button on the same page
- Log back into the league host account
- Import the leagues again