Coding Problem - spiderking220

package me.spiderking220.main;

import org.bukkit.entity.Monster;
import org.bukkit.entity.Player;
import org.bukkit.entity.Villager;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.EntityDeathEvent;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class Main extends JavaPlugin implements Listener {

	public void onEnable() {};

	public void onDisable() {};

 	@EventHandler
	public void onJoin(PlayerJoinEvent e){
		Player p = e.getPlayer();

		if(!getConfig().contains(p.getName())){
		    getConfig().set(p.getName() + ".Coins", 0);
		}
	}
    @EventHandler
    public void onKill(EntityDeathEvent e){
    	if(e.getEntity() instanceof Monster){
    		Monster m = (Monster) e.getEntity();
    		if(m.getKiller() instanceof Player){
    			Player p = m.getKiller();
    			giveCoins(p, 2);
    		}
    	}
        	if(e.getEntity() instanceof Villager){
        		Villager v = (Villager) e.getEntity();
        		if(v.getKiller() instanceof Player){
        			Player p = v.getKiller();
        			takeCoins(p, 1);
        		}
        	}
    }
    public void giveCoins(Player p, int i){
    	getConfig().set(p.getName() + ".Coins", getConfig().getInt(p.getName() + ".Coins", 0) + i);
    	saveConfig();
    	p.sendMessage("§3" + i + " coins recieved!");
    }

    public void takeCoins(Player p, int i){
        getConfig().set(p.getName() + ".Coins", getConfig().getInt(p.getName() + ".Coins", 0) - i);
        saveConfig();
        p.sendMessage("§3" + i + " coins taken!");
    }
}