added if statement to restart button functionality

src/main/java/Gui/ActionHandler.java

@@ -16,9 +16,11 @@ public class ActionHandler implements ActionListener {
 			System.exit(0);
 		}
 		
-		GameGui.questionNr = 0;
-		GameGui.LosingPanel.setVisible(false);
-		restartGame.startGame();
+		if (e.getSource() == GameGui.RestartBtn) {
+			GameGui.questionNr = 0;
+			GameGui.LosingPanel.setVisible(false);
+			restartGame.startGame();
+		}
 		
 	}