Config Help

package me.OhYes.elo;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class Main extends JavaPlugin implements Listener{

    @Override
    public void onEnable(){
        Bukkit.getPluginManager().registerEvents(this, this);
        getConfig();
    }
    @Override
    public void onDisable(){
        saveConfig();
    }

    public int ELO;

    public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args){
        if(!(sender instanceof Player)){
            sender.sendMessage("You must be a player to use commands for this plugin.");
            return false;
        }else{
            Player p = (Player) sender;
            if(commandLabel.equalsIgnoreCase("elo")){
                if(args.length == 0){
                p.sendMessage(ChatColor.YELLOW+"-----------------------------");
                p.sendMessage(ChatColor.AQUA+"/elo <playername> (show a player's elo rating.)");
                p.sendMessage(ChatColor.AQUA+"/elo give <playername> <amount> (give a player a certain amount of elo.)");
                p.sendMessage(ChatColor.AQUA+"/elo take <playername> <amount> (take a certain amount of elo from a player.)");
                p.sendMessage(ChatColor.AQUA+"/elo set <playername> <amount> (set a player's elo rating.)");
                p.sendMessage(ChatColor.YELLOW+"-----------------------------");
                return false;
                }else if(args.length == 1){
                    try{
                    @SuppressWarnings("deprecation") Player targetp = Bukkit.getServer().getPlayer(args[0]);

                    }catch(Exception e){
                        p.sendMessage(ChatColor.RED + "An error occured, this is most likely that the player you searched for is not online.");
                    }
                    }
            }
        }



        return false;

    }

    @EventHandler
    public void onPlayerJoin(PlayerJoinEvent e){
        Player p = e.getPlayer();
        if(getConfig().getString("Players"))
    }


}