Scoreboard help

Hello!
I'm trying to add a scoreboard score, where we have a score (coins) in a FileConfiguration, with the variable coins. When I reload the server, it gives an error on startup - NullPointerException, on this line:

Code:

coin.put(p, obj.getScore(Bukkit.getServer().getOfflinePlayer(ChatColor.GREEN + "Coins: ")));

This is the full code:

Code:

package me.Darkpicasa.GoldSparkKits;
 
import java.util.HashMap;
 
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.OfflinePlayer;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.Action;
import org.bukkit.event.entity.PlayerDeathEvent;
import org.bukkit.event.inventory.InventoryClickEvent;
import org.bukkit.event.player.PlayerDropItemEvent;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.event.player.PlayerRespawnEvent;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.scoreboard.DisplaySlot;
import org.bukkit.scoreboard.Objective;
import org.bukkit.scoreboard.Score;
import org.bukkit.scoreboard.Scoreboard;
import org.bukkit.scoreboard.ScoreboardManager;
 
public class GoldSparkKits extends JavaPlugin implements Listener{
    public GoldSparkKits plugin;
    public CustomConfig coins;
    public HashMap<OfflinePlayer, Score> coin = new HashMap<OfflinePlayer, Score>();
    public ScoreboardManager sbm;
    public Scoreboard sb;
    public Objective obj;
    public void onEnable(){
        sbm = Bukkit.getScoreboardManager();
        sb = sbm.getNewScoreboard();
        obj = sb.registerNewObjective("test1", "test");
        obj.setDisplaySlot(DisplaySlot.SIDEBAR);
        obj.setDisplayName(ChatColor.translateAlternateColorCodes('&', "&6&lGoldSpark Network PvP "));
       
       
        for (Player p : Bukkit.getOnlinePlayers()){
            p.setScoreboard(sb);
           
            if (coin.get(p) == null){
                coin.put(p, obj.getScore(Bukkit.getServer().getOfflinePlayer(ChatColor.GREEN + "Coins: ")));
                coin.get(p).setScore(coins.getConfig().getInt(p.getName()));   
            }
        }
       
        plugin = this;
        coins = new CustomConfig(plugin, "coins.yml");
        coins.getConfig().options().copyDefaults(true);
        coins.saveConfig();
        getLogger().info("Plugin Enabled");
        getServer().getPluginManager().registerEvents(this, this);
    }
    public void onDisable(){
        getLogger().info("Plugin Disabled");
    }
 
 
    @EventHandler
    public void playerJoin(PlayerJoinEvent e){
        Player p = e.getPlayer();
        p.setScoreboard(sb);
        if (coin.get(p) == null){
            coin.put(p, obj.getScore(Bukkit.getServer().getOfflinePlayer(ChatColor.GREEN + "Coins: ")));
            coin.get(p).setScore(coins.getConfig().getInt(p.getName()));   
        }
       
        if (!(coins.getConfig().contains(e.getPlayer().getName()))){
            coins.getConfig().createSection(e.getPlayer().getName());
            coins.getConfig().set(e.getPlayer().getName(), 0);
            coins.saveConfig();
        }
        for (ItemStack a : p.getInventory().getContents()){
            if ((a.getType() == Material.CLAY_BALL && ChatColor.stripColor(a.getItemMeta().getDisplayName()).equalsIgnoreCase("Kit Shop"))){
                return;
            }
        }
        ItemStack is = new ItemStack(Material.CLAY_BALL);
        ItemMeta im = is.getItemMeta();
        im.setDisplayName(ChatColor.GREEN + "Kit Shop");
        is.setItemMeta(im);
        p.getInventory().addItem(is);
        p.updateInventory();
       
    }
   
    @EventHandler
    public void respawn(PlayerRespawnEvent e){
        Player p = e.getPlayer();
        ItemStack is = new ItemStack(Material.CLAY_BALL);
        ItemMeta im = is.getItemMeta();
        im.setDisplayName(ChatColor.GREEN + "Kit Shop");
        is.setItemMeta(im);
        p.getInventory().addItem(is);
    }
   
    @EventHandler
    public void dropItem(PlayerDropItemEvent e){
        e.setCancelled(true);
    }
   
    @EventHandler
    public void characterOpen(PlayerInteractEvent e){   
        if (e.getAction() == Action.RIGHT_CLICK_BLOCK || e.getAction() == Action.RIGHT_CLICK_AIR) {
            Player p = e.getPlayer();
            try {   
                if (p.getItemInHand().getType() == Material.CLAY_BALL) {   
                    if (ChatColor.stripColor(p.getItemInHand().getItemMeta().getDisplayName()).equalsIgnoreCase("Kit Shop")) {
                        e.setCancelled(true);
                        openInv(p);       
                    }       
                }       
            } catch (Exception a) {}       
        }
    }
   
    @EventHandler
    public void inventoryGUI(InventoryClickEvent e){
        if (!(ChatColor.stripColor(e.getInventory().getName()).equalsIgnoreCase("Redeem"))){
            return;
        }
        Player p = (Player) e.getWhoClicked();
        e.setCancelled(true);
        if (e.getCurrentItem()==null || e.getCurrentItem().getType() == Material.AIR || !e.getCurrentItem().hasItemMeta()){
            p.closeInventory();
            return;
        }
        switch (e.getCurrentItem().getType()){
        case WOOD_SWORD:
            p.sendMessage("Hi");
            p.closeInventory();
            break;
        default:
            p.closeInventory();
            break;
        }
    }
    @EventHandler
    public void playerDeath(PlayerDeathEvent e){
        if (e.getEntity().getKiller() != null){
            Player killer = e.getEntity().getKiller();
            Player slain = e.getEntity();
            int new1 = coins.getConfig().getInt(killer.getName()) + 3;
            int new2 = coins.getConfig().getInt(slain.getName()) - 1;
            coins.getConfig().set(killer.getName(), new1);
            coins.saveConfig();
            killer.sendMessage(ChatColor.GOLD + "You killed " + slain.getName() + "! You received 3 coins!");
            killer.sendMessage(ChatColor.RED + "You can redeem these tokens for coins in the upcoming character shop! Be sure to save your tokens!");
            if (new2 != -1){
                coins.getConfig().set(slain.getName(), new2);
                coins.saveConfig();
                slain.sendMessage(ChatColor.GOLD + "You were killed by " + killer.getName() + "! You lost 1 coin!");
            }
            else{
                slain.sendMessage(ChatColor.GOLD + "You were killed by " + killer.getName() + "!");
            }
           
            coin.get(killer).setScore(new1);
            coin.get(slain).setScore(new2);
        }
        e.getDrops().clear();
    }
   
    public void openInv(Player p){
        Inventory inv = Bukkit.createInventory(null, 9, ChatColor.DARK_GREEN + "Redeem");
       
        ItemStack example = new ItemStack(Material.WOOD_SWORD);
       
        ItemMeta exampleMeta = example.getItemMeta();
        exampleMeta.setDisplayName(ChatColor.DARK_PURPLE + "EXAMPLE");
        example.setItemMeta(exampleMeta);
 
        inv.setItem(0, example);
       
        p.openInventory(inv);
       
    }
   
   
}

 

Darkpicasa U`re using OnlinePlayers on "OfflinePlayer" Field, and be sure there`s an obj with that score.

 

I get the same error when I change the HashMap to <Player, Score>

 

Juancomaster1998 Darkpicasa Player extends OfflinePlayer. Shouldn't matter.

 

That's what I thought...

Do you see the error?

I've looked through a few YouTube videos, I still can't seem to solve it.

Please help

I'm new to Scoreboards

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Bump - please help me!!!