https://hastebin.skyra.pw/gujiyosovu.prolog
https://mclo.gs/CPI9jnT

    @Override
    public ItemStack getDisplayedItem(Player player) {
        // If slot is not open we display a barrier block with rank message
        if (!this.openSlot) {
            return new ItemBuilder(Material.BARRIER)
                .name(Colors.GRAY + "Create Custom Difficulty " + (this.difficultyIndex + 1))
                .lore("",
                    Colors.PRIMARY + "Only " + Colors.AQUA + "Premium" + Colors.PRIMARY + " players can",
                    Colors.PRIMARY + "create multiple custom difficulties!")
                .build();
        }

        ArenaProfile profile = Profiles.getProfile(ArenaProfile.class, player);
        BotProperties properties = profile.getCustomDifficultyProperties(this.difficultyIndex);
        if (properties == null) {
            return new ItemBuilder(Material.OAK_SIGN)
                    .name(Colors.PRIMARY + "Create Custom Difficulty " + (this.difficultyIndex + 1))
                    .lore("",
                            Colors.GREEN + Colors.B + "Click to create!").build();
        } else {
            return new ItemBuilder(Material.WRITTEN_BOOK)
                    .name(Colors.PRIMARY + "Custom Difficulty " + Colors.SECONDARY + properties.getNamePrefix())
                    .lore("",
                            Colors.GREEN + Colors.B + "Left-click to play!",
                            Colors.GRAY + Colors.I + "Right-click to edit.",
                            Colors.GRAY + Colors.I + "Shift-click to delete.")
                    .flags()
                    .build();
        }
    }