Hotfix NPE

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

FightSystem_Main/src/de/steamwar/fightsystem/kit/Kit.java

@@ -85,6 +85,8 @@ public class Kit {
 
         //36 = Inventargröße
         for(int i = 0; i < 36; i++){
+            if(inventory[i] == null)
+                continue;
             SWItem item = new SWItem();
             item.setItemStack(inventory[i]);
             inv.setItem(i, item);