InventoryClickEvent not being called?

Right now, I'm creating a custom inventory GUI, and I'm checking whenever a player clicks on an item in the GUI.

However, for some reason, the InventoryClickEvent is not being called for this.

Here's my code:

Creating the GUI:

Code:

        Inventory i = Bukkit.createInventory(null, 9, "Character Stats");
        String currentclass = plugin.dfs.getCustomConfig().getString(UUIDAPI.getUUID(p) + ".Current-Class");
        int currentLevel = plugin.dfs.getCustomConfig().getInt(UUIDAPI.getUUID(p) + "." + currentclass + "-Level");
        int nextLevel = currentLevel + 1;
        int currentEXP = plugin.dfs.getCustomConfig().getInt(UUIDAPI.getUUID(p) + "." + currentclass + "-EXP");
        int expForNextLevel = plugin.getConfig().getInt("Levels.EXP." + nextLevel);
        int remainderEXP = expForNextLevel - currentEXP;
       
        ItemStack i3 = new ItemStack(Material.NETHER_STAR);
        ItemMeta meta3 = i3.getItemMeta();
        meta3.setDisplayName(ChatColor.YELLOW + "Character Class: " + ChatColor.AQUA + currentclass);
        ArrayList<String> lore3 = new ArrayList<String>();
        lore3.add(ChatColor.GRAY + "Right now, your current");
        lore3.add(ChatColor.GRAY + "class is the: " + ChatColor.AQUA + currentclass);
        meta3.setLore(lore3);
        i3.setItemMeta(meta3);
        i.setItem(2, i3);
       
        ItemStack i1 = new ItemStack(Material.BOOK);
        ItemMeta meta1 = i1.getItemMeta();
        meta1.setDisplayName(ChatColor.GREEN + "Current Level: " + ChatColor.LIGHT_PURPLE + currentLevel);
        ArrayList<String> lore1 = new ArrayList<String>();
        lore1.add(ChatColor.GRAY + "Your current level for");
        lore1.add(ChatColor.GRAY + "your " + ChatColor.AQUA +  currentclass + " Class" + ChatColor.GRAY + " is: " + ChatColor.LIGHT_PURPLE + currentLevel);
        meta1.setLore(lore1);
        i1.setItemMeta(meta1);
        i.setItem(3, i1);
       
        ItemStack i2 = new ItemStack(Material.BLAZE_POWDER);
        ItemMeta meta2 = i2.getItemMeta();
        meta2.setDisplayName(ChatColor.DARK_AQUA + "Current EXP: " + ChatColor.GOLD + currentEXP);
        ArrayList<String> lore2 = new ArrayList<String>();
        lore2.add(ChatColor.GRAY + "Your current total EXP for");
        lore2.add(ChatColor.GRAY + "your " + ChatColor.AQUA + currentclass + " Class" + ChatColor.GRAY + " is: " + ChatColor.GOLD + currentEXP);
        meta2.setLore(lore2);
        i2.setItemMeta(meta2);
        i.setItem(4, i2);
       
        ItemStack i4 = new ItemStack(Material.PAPER);
        ItemMeta meta4 = i4.getItemMeta();
        meta4.setDisplayName(ChatColor.DARK_GREEN + "EXP For Next Level: " + ChatColor.YELLOW + expForNextLevel);
        ArrayList<String> lore4 = new ArrayList<String>();
        lore4.add(ChatColor.GRAY + "To get to your next level, you");
        lore4.add(ChatColor.GRAY + "must have a total EXP of: " + ChatColor.YELLOW + expForNextLevel);
        meta4.setLore(lore4);
        i4.setItemMeta(meta4);
        i.setItem(5, i4);
       
        ItemStack i5 = new ItemStack(Material.GLOWSTONE_DUST);
        ItemMeta meta5 = i5.getItemMeta();
        meta5.setDisplayName(ChatColor.BLUE + "Remainder EXP: " + ChatColor.LIGHT_PURPLE + remainderEXP);
        ArrayList<String> lore5 = new ArrayList<String>();
        lore5.add(ChatColor.GRAY + "In order to get to the");
        lore5.add(ChatColor.GRAY + "Next Level, " + ChatColor.AQUA + nextLevel + ChatColor.GRAY + ", you must");
        lore5.add(ChatColor.GRAY + "get " + ChatColor.LIGHT_PURPLE + remainderEXP + ChatColor.GRAY + " more" + ChatColor.GOLD + " EXP Points.");
        meta5.setLore(lore5);
        i5.setItemMeta(meta5);
        i.setItem(6, i5);
        p.openInventory(i);

Listening for the Click:

Code:

    @EventHandler
    public void characterStatsGUI(InventoryClickEvent e){
        plugin.getLogger().info("Check1");
        if(!(e.getWhoClicked() instanceof Player)) return;
        if(!(ChatColor.stripColor(e.getView().getTopInventory().getName()).equals("Character Stats"))) return;
        e.setCancelled(true);
    }

Unfortunately, not even "Check1" message is being logged, leaving me to suspect something is seriously going wrong.

My listener has been registered, I am using EventHandler, and other listeners in the same Listener class are working properly.

Thanks for the help! ~Acer