public void setRank(OfflinePlayer p, BuyableRanks r, Calendar expirationdate) {
        ppc = new PerPlayerConfig(p.getUniqueId());

        ppc.getFile().set("rank.oldrank", getRank((Player) p).toString());
        ppc.saveFile();
        System.out.println("save1");
        ppc.getFile().set("rank.currentrank", r.toString().toUpperCase());
        System.out.println("save2");
        if (expirationdate != null) {
            ppc.getFile().set("rank.expirationdate", dat.calendarToString(expirationdate));
            System.out.println("save31");
        } else {
            ppc.getFile().set("rank.expirationdate", null);
            System.out.println("save32");
        }
        ppc.saveFile();
        System.out.println("savefull");

        Bukkit.dispatchCommand(Bukkit.getConsoleSender(), "pex user " + p.getName() + " group set " + r.getName().toLowerCase());

        ppc = null;
        return;
    }