@EventHandler
    public void onDonation (AsyncDonationEvent e ) {
        Donation donation = e. getDonation ( ) ;

        String username = donation. getUsername ( ) ;

        Currency currency = donation. getCurrency ( ) ;
        int amount = donation. getAmountMain ( ) ;

        if (currency == Currency. RUB && amount >= 500 ) {
            Bukkit. getOfflinePlayer (username ). setWhitelisted ( true ) ;
        }
    }

    @EventHandler
    public void onDonation (AsyncDonationEvent e ) {
        Donation donation = e. getDonation ( ) ;

        Currency currency = donation. getCurrency ( ) ;
        int amount = donation. getAmountMain ( ) ;

        if (currency == Currency. RUB && amount == 150 ) {
            new BukkitRunnable ( ) {
                @Override
                public void run ( ) {
                    for (Player player : Bukkit. getOnlinePlayers ( ) ) {
                        World world = player. getWorld ( ) ;

                        world. spawnEntity (player. getLocation ( ), EntityType. GHAST ) ;
                    }
                }
            }. runTask ( this ) ;
        }
    }