Hotfix NPE

Signed-off-by: Lixfel <agga-games@gmx.de>

FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionPoints.java

@@ -40,7 +40,8 @@ public class WinconditionPoints extends PlayerWincondition {
     @Override
     public void disable() {
         super.disable();
-        countdown.disable();
+        if(countdown != null)
+            countdown.disable();
     }
 
     @Override