NameTagAPI.java

    public static void setPrefix(Player p, Scoreboard board, String prefix) {
        try {
            prefix = ChatColor.translateAlternateColorCodes('&', prefix);
            if(prefix.length() > 16) {
                prefix = prefix.substring(0, 16);
            }
            Team t = board.getTeam(Rang.getRang(p).getOrdnung());
            if(t == null) {
                t = board.registerNewTeam(Rang.getRang(p).getOrdnung());
                t.setPrefix(prefix);
                t.addPlayer(p);
            } else {
                t = board.getTeam(Rang.getRang(p).getOrdnung());
                t.setPrefix(prefix);
                t.addPlayer(p);
            }
        } catch(Exception ex) {
            ex.printStackTrace();
        }
    }