The trophy on the scoresheet wants to light up on it's own.

You have to tell it what makes the winner of the match.

To do this, go to Menu > Manage > Brackets/Round-Robins > Round-Robins or bracket

Select the League or Bracket you want to set.

Pencil to edit.

Go to Score Input section.

At the bottom under Calc Method for automatic winner, choose what determines the winner.