Solved moving config from Listener Class to MainClass

Hey bukkit forums, I know I posted a few hours ago but I need more help! (Yep I'm an amateur)
here are my two classes, Main and listener

Code:

package me.firstflames;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.entity.Player;
import org.bukkit.inventory.ItemStack;
import org.bukkit.permissions.Permission;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;

public class MainClass extends JavaPlugin {
    public Permission playerPermission = new Permission("Enchants.Admin");
    @Override
    public void onEnable() {
        new ListenerClass(this);
        PluginManager pm = getServer().getPluginManager();
        pm.addPermission(playerPermission);
    }
  
    @Override
    public void onDisable() {
        saveConfig();
    }
  
    public boolean onCommand(CommandSender sender, Command cmd, String lable, String[] args){
      
        FileConfiguration config = this.getConfig();
        if (cmd.getName().equalsIgnoreCase("et") && sender instanceof Player && args.length == 0){
            Player player = (Player) sender;
  
            int total = config.getInt("tokens." + player.getName().toLowerCase());
            player.sendMessage(ChatColor.GREEN + "You have " + ChatColor.GRAY + total + ChatColor.GREEN + " Tokens");
        return true;
      
        }else if (args.length == 3 && args[0].equalsIgnoreCase("give") && sender instanceof Player){
            Player player = (Player) sender;
            if(player.hasPermission("Enchants.Admin")){
            int length = args.length;
            if (length == 3) {
                for (Player playerToGiveToken : Bukkit.getServer().getOnlinePlayers()){
                    if(playerToGiveToken.getName().equalsIgnoreCase(args[1])){
                        playerToGiveToken.getInventory().addItem(new ItemStack(Material.BEDROCK, Integer.parseInt(args[2])));
                        playerToGiveToken.sendMessage(ChatColor.GOLD + player.getName() + " has given you " + ChatColor.GRAY + args[2] + ChatColor.GOLD + " Tokens!");
                        player.sendMessage(ChatColor.GOLD + "You have given " + playerToGiveToken.getName()+ " " + ChatColor.GRAY + args[2] + ChatColor.GOLD + " Tokens!");
                    }
                }
            }      
        }
        return true;
    }else if (args.length == 1 && args[0].equalsIgnoreCase("help") && sender instanceof Player){
        Player player = (Player) sender;
        int length = args.length;
                if (length == 1){
                    player.sendMessage(ChatColor.GRAY + "/et :" + ChatColor.GOLD + " To Check your eToken Balance");
                    player.sendMessage(ChatColor.GRAY + "Admin Commands");
                    player.sendMessage(ChatColor.GRAY + "/et give (player) (amount) :" + ChatColor.GOLD + " Give Player eTokens");
                }
    }
    return false;
}
}

And my Listener Class

Code:

package me.firstflames;

import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.BlockPlaceEvent;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.inventory.ItemStack;

public class ListenerClass implements Listener {
  
    MainClass plugin;
    FileConfiguration config;
  
    public ListenerClass(MainClass plugin) {
        plugin.getServer().getPluginManager().registerEvents(this, plugin);  
        this.plugin = plugin;
        config = plugin.getConfig();
    }
  
    @EventHandler
    public void onPlayerJoin(PlayerJoinEvent e){
      
        Player player = e.getPlayer();
              
        e.setJoinMessage(ChatColor.GOLD + "Welcome, " + player.getName() + ", to Palm Life MC!");
      
        if (player.hasPlayedBefore() == false){
            player.sendMessage(ChatColor.GREEN + "Welcome for the first time to Palm Life MC, Here is a free 20 E-Tokens!");
    }
    }
        @EventHandler
        public void onBlockPlace(BlockPlaceEvent d){
            Player player = d.getPlayer();
          
            int tokens = 20;
            String path = "tokens." + player.getName().toLowerCase();
          
            if (d.getBlock().getType() == Material.BEDROCK){
                d.setCancelled(true);
                player.sendMessage(ChatColor.GREEN + " You have gained " + ChatColor.GRAY + "1 " + ChatColor.GREEN + "Token");
                player.getInventory().removeItem(new ItemStack(Material.BEDROCK, 1));
                if(config.contains(path)){
                    tokens = config.getInt(path);
                }
                config.set(path, tokens + 1);
              
                plugin.saveConfig();
            }
    }

}

I am trying to find out how to manipulate "tokens" in the Main class. I have tried

Code:

this.MainClass = plugin; 

which i doubt would actually work, but i tried it. I'm sorry if this is poorly worded, it is the best i could explain
I want to make it so when i do /et give (player) (amount) instead of giving bedrock, which the player has to manually place down, it gives it strait to their 'account'

 

Thanks, But I found a better way around it. Instead of 'summoning' the config file at the Listener file, I did it at my main where I would refer to it more. I have a good understanding of how this works