Solved My customs recipes don't work

Hi !
I've a problem with my customs recipes and I don't know why

Code (open) Code (close)

Code:

ItemStack fireStaff = new ItemStack(Material.BLAZE_ROD);
        ItemMeta staffMeta = fireStaff.getItemMeta();
        staffMeta.setDisplayName("§6Fire §eStaff");
        ArrayList<String> lore = new ArrayList<>();
        lore.add("§fUse §cit §fand do cool §cthings");
        staffMeta.setLore(lore);
        fireStaff.setItemMeta(staffMeta);
        NamespacedKey staffKey = new NamespacedKey(this, "fire_staff");
        ShapedRecipe staffRecipe = new ShapedRecipe(staffKey, fireStaff);
        staffRecipe.shape(
                "CFC",
                "DBD",
                " E "
        );
        staffRecipe.setIngredient('C', Material.COAL_BLOCK);
        staffRecipe.setIngredient('F', Material.FLINT_AND_STEEL);
        staffRecipe.setIngredient('D', Material.DIAMOND);
        staffRecipe.setIngredient('B', Material.BLAZE_ROD);
        staffRecipe.setIngredient('E', Material.EMERALD);
        Bukkit.getServer().addRecipe(staffRecipe);

Could you help me ?

 

No, finnaly, it's working ! I just don't use the correct item ^^'