Removing Entry from a Scoreboard

I am having a lot of trouble removing an entry from a scoreboard. I am using Chinwe's Scroller class, and every time I call the .next() method it just appends a new line onto the scoreboard. Calling the scoreboard.resetScores() method does not work. Here is my code:

Code:java

public void update() {
        new BukkitRunnable() {
            @Override
            public void run() {
                if (ready) {
                    for (Entry<StringIntGroup, Scroller> entry : scrollers
                            .entrySet()) {
                        scoreboard.resetScores(entry.getKey().getString());
                        obj.getScore(entry.getValue().next()).setScore(
                                entry.getKey().getInteger());
                        entry.getValue();
                    }
                }
            }
        }.runTaskTimer(Core.i(), 0L, 5L);
    }

Is there another way to remove an entry?