Erro ;-;

package kwclantags.metodos;

import java.util.HashMap;

import org.bukkit.Bukkit;
import org.bukkit.Server;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.entity.Player;
import org.bukkit.plugin.Plugin;
import org.bukkit.scheduler.BukkitRunnable;
import org.bukkit.scoreboard.Scoreboard;
import org.bukkit.scoreboard.Team;

import me.kewi.KwClanTags;

public class KwUtils {

    private static Plugin pl = KwMetodos.getPlugin();
    private static Server s = Bukkit.getServer();
    public static HashMap<String, Integer> up = new HashMap<String, Integer>();
    private static FileConfiguration cnf = KwClanTags.getCnf();

    public static void getUpdate() {
        new BukkitRunnable() {

            @Override
            public void run() {
                for (Player ps : s.getOnlinePlayers()) {
                    setUpdate(ps.getScoreboard());
                }
            }

        }.runTaskTimer(pl, 20L * 5, up.get("Tag.Delay") * 20);//Essa é a linha que retorna null
    }

    public static String getTag(Player p) {
        for (String tag : cnf.getConfigurationSection("Tags").getKeys(false)) {
            if (p.hasPermission("kwtag." + tag)) {
                return tag;
            }
        }
        return null;
    }

    public static void setUpdate(final Scoreboard sb) {
        Thread th = new Thread(new Runnable() {

            @Override
            public void run() {
                try {
                    for (Player p : Bukkit.getOnlinePlayers()) {
                        Team t;
                        if (sb.getTeam(p.getName().toLowerCase()) != null) {
                            t = sb.getTeam(p.getName().toLowerCase());
                        } else {
                            t = sb.registerNewTeam(p.getName().toLowerCase());
                        }

                        if (KwAPI.getClan(p)) {
                            String tag = cnf.getString("Tags." + getTag(p));
                            String clanFormat = cnf.getString("Tag.Clan_Formato").replaceAll("&", "§")
                                    .replaceAll("{clan}", getTag(p));
                            String finaltag = tag.replaceAll("{clantag}", clanFormat).replaceAll("&", "§");
                            if (finaltag.length() > 16) {
                                finaltag = finaltag.substring(0, 16);
                            }
                            t.setPrefix(finaltag);
                        } else {
                            String tag = cnf.getString("Tags." + getTag(p));
                            if (tag.length() > 16) {
                                tag = tag.substring(0, 16);
                            }
                            String finaltag = tag.replaceAll("&", "§").replace("{clantag}", "§");
                            if (finaltag.length() > 16) {
                                finaltag = finaltag.substring(0, 16);
                            }
                            t.setPrefix(finaltag);
                        }
                        t.addPlayer(p);
                    }

                } catch (Exception e) {
                    e.printStackTrace();
                }

            }
        });
        th.start();
    }

}

//error
15:09:29 [SEVERE] Error occurred while enabling KwClanTags v0.1 (Is it up to dat
e?)
java.lang.NullPointerException
        at kwclantags.metodos.KwUtils.getUpdate(KwUtils.java:33)
        at kwclantags.metodos.KwMetodos.saveMetodos(KwMetodos.java:45)
        at kwclantags.metodos.KwMetodos.getMetodos(KwMetodos.java:51)
        at me.kewi.KwClanTags.onEnable(KwClanTags.java:15)
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:217)
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader
.java:457)
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManage
r.java:382)
        at org.bukkit.craftbukkit.v1_5_R3.CraftServer.loadPlugin(CraftServer.jav
a:305)
        at org.bukkit.craftbukkit.v1_5_R3.CraftServer.enablePlugins(CraftServer.
java:287)
        at org.bukkit.craftbukkit.v1_5_R3.CraftServer.reload(CraftServer.java:63
0)
        at org.bukkit.Bukkit.reload(Bukkit.java:275)
        at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:
24)
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:18
9)
        at org.bukkit.craftbukkit.v1_5_R3.CraftServer.dispatchCommand(CraftServe
r.java:546)
        at org.bukkit.craftbukkit.v1_5_R3.CraftServer.dispatchServerCommand(Craf
tServer.java:535)
        at net.minecraft.server.v1_5_R3.DedicatedServer.an(DedicatedServer.java:
263)
        at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:2
28)
        at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:4
72)
        at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java
:404)
        at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:5
73)