Solved Always returning "LEGACY_Something"

Hi, I am creating a minecraft plugin using bukkit 1.13.2 and I am creating a command that returns the item in the main hand of the player but it's always returning me LEGACY_[Insert an item name here]"
I am using this:

Code:

else if(cmd.getName().equalsIgnoreCase("getitemname"))
        {
            if(sender instanceof Player)
            {
                Player player = (Player) sender;
                player.sendMessage("§lVotre Item: §r§6" + player.getItemInHand().getType());
            }
            else
            {
                sender.sendMessage("vous devez être un Joueur pour executer cette commande");
            }
        }

is there something wrong that makes it return "LEGACY_SOMETHING" instead of "SOMETHING" in this ?
if anyone tell me the probs I would be happy ^^

 

oh thanks ^^