Solved Problem with giving a kit mothod

I changed my code to hold a class with the kit variables you know how it goes but when I'm giving myself the kit it's updating the icon of the kit and the items inside the kit

The problem I have is in the giveKit method

Code (Text):

public class KitData
{
    public static Map<String, KitClass> Kits = new HashMap<>();
    public static void createKit(Player player, String kitName)
    {
        if(Kits.containsKey(kitName)) {

            player.sendMessage(ChatColor.RED + "The Kit " + kitName + " is already exits");
        } else {
            @SuppressWarnings("deprecation")
            KitClass kc = new KitClass(kitName ,player.getItemInHand(), player.getInventory().getContents());
            Kits.put(kitName, kc);
        }
    }
    public static void giveKit(Player player, String kitName)
    {
        if(Kits.containsKey(kitName)) {
            KitClass kits = Kits.get(kitName);
            for(ItemStack m : kits.items()) {
                if(m == null) continue;
                    player.getInventory().addItem(m);
            }
        }
        else {
            return;
        }
    }
}
}