Fix NPE

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

FightSystem_Main/src/de/steamwar/fightsystem/utils/FightStatistics.java

@@ -47,6 +47,8 @@ public class FightStatistics {
 
     public static void saveStats(FightTeam winner, String windescription){
         String gameMode = Config.SchematicType.toDB();
+        if(!Fight.getBlueTeam().hasTeamLeader() || !Fight.getRedTeam().hasTeamLeader())
+            return;
         SteamwarUser blueLeader = SteamwarUser.get(Fight.getBlueTeam().getLeader().getPlayer().getUniqueId());
         SteamwarUser redLeader = SteamwarUser.get(Fight.getRedTeam().getLeader().getPlayer().getUniqueId());
         int win = 0;