Solved Item Manager function not working

So I have an ItemManager that has a function called giveItem that gets called all over the plugin. It started to work, then suddenly didn't want to work. I have no idea how it happened, but maybe someone here can help me out.

Here is my onJoin event where the player gets the item:

Code:

@EventHandler
    public void onJoin(PlayerJoinEvent event) {
        Player player = event.getPlayer();

        itemManager.giveItem(player, "dwarf_magma_cream", plugin.configManager.dwarfConfig);
    }

Then here is my giveItem function:

Code:

public void giveItem(Player player, String itemName, FileConfiguration config) {
        plugin.getLogger().info("Calling giveItem function.");

        if (config.contains("custom-items." + itemName)) {
            ConfigurationSection itemConfig = config.getConfigurationSection("custom-items." + itemName);

            Material type = Material.matchMaterial(itemConfig.getString("type", "").toUpperCase());
            if (type == null) {
                plugin.getLogger().warning("Invalid material type for item: " + itemName);
                return;
            }

            String name = ChatColor.translateAlternateColorCodes('&', itemConfig.getString("name", ""));
            int amount = itemConfig.getInt("amount", 1);
            List<String> lore = itemConfig.getStringList("lore");

            ItemStack customItem = new ItemStack(type, amount);
            ItemMeta meta = customItem.getItemMeta();

            if (meta != null) {
                meta.setDisplayName(name);
                meta.setLore(lore);

                customItem.setItemMeta(meta);
                player.getInventory().addItem(customItem);
            }
        }
    }

The function is being called, but there is no item. No idea what caused it to stop working, but I believe it should work. My config is below:

Code:

custom-items:
  dwarf_magma_cream:
    type: magma_cream
    name: "&bOpen Dwarf Class Menu"
    lore:
      - "&eL-Click: Opens a menu to get one or more"
      - "&erandom dwarf class."

  builder_disc:
    type: music_disc_13
    name: "&bBuilder Class"
    lore:
      - "&eL-Click: Become a builder dwarf."
      - "&5&oBuild a keep to protect all dwarves"
      - "&5&ofrom the monsters. Don't forget to"
      - "&5&oreinforce the walls!"

It's really stumped me on why it isn't working, not too sure what I caused for it to change, but suddenly it did. It's pretty annoying.