As soon as the referee blows the whistle, you have to end the game in EGREP.
(1) Click on "End-Game" in the timeline and save the game with "F4".
(2) Alternatively, you can also right-click in the "Live-time" field to display the selection of game sections and select "End of game" there. (Also save directly afterwards with F4!)
The game is now shown as finished in the live scoring and you can correct the gamereport and complete your entries at your leisure.