added the implement to delete the score after gameover

src/main/java/pacmanGame/GameManager.java

@@ -25,6 +25,7 @@ public class GameManager {
 	    moveSpeed = 5;
 	    livesRemaining = 3;
 		failedAttempts = 0;
+		score = 0;
 	    ghosts = new Ghost[ghostCount];
         for (int i = 0; i < ghosts.length; i++) {
             ghosts[i] = new Ghost(this, i);