Weird Error with InventoryClick

I am trying to make it so that if you click an item in your inventory, it won't rebuy the item, but it keeps on doing it. I did the checks but it is still buying the item, and you're only supposed to buy it from the menu, not from your inventory.

Code (Text):

    @EventHandler(ignoreCancelled=true)
    public void onClick(InventoryClickEvent event) {
        if (!(event.getWhoClicked() instanceof Player)) return;
        Player p = (Player) event.getWhoClicked();
        if (event.getInventory() == null || !users.containsKey(p.getUniqueId())) return;
        ScrollerInventory inv = users.get(p.getUniqueId());
        if (event.getCurrentItem() == null || event.getCurrentItem().getItemMeta() == null ||
                event.getCurrentItem().getItemMeta().getDisplayName() == null ||
                Objects.equals(event.getInventory().getName(), p.getInventory().getName()) ||
                event.getInventory().equals(p.getInventory()) ||
                event.getInventory().getName().equals(Core.getInstance().getConfig().getString("options.food-central.menu-name").replace("&", "§"))) {
        }
        if (event.getCurrentItem().getItemMeta().getDisplayName().equals(nextPageName)) {
            event.setCancelled(true);
            if (inv.currpage >= inv.pages.size() - 1) {
                return;
            }
            inv.currpage += 1;
            p.openInventory(inv.pages.get(inv.currpage));
        }
        if (event.getCurrentItem().getItemMeta().getDisplayName().equals(previousPageName)) {
            event.setCancelled(true);
            if (inv.currpage > 0) {
                inv.currpage -= 1;
                p.openInventory(inv.pages.get(inv.currpage));
            }
        }
        for (Food food : FoodManager.getFoods()) {
            String name = ChatColor.stripColor(event.getCurrentItem().getItemMeta().getDisplayName());
            if (name.contains(food.getName())) {
                event.setCancelled(true);
                Bukkit.getPluginManager().callEvent(new FoodBuyEvent(p, food, food.getCost()));
            }
        }
    }