WorldEdit cuboidSelection from configuration section

Hello everyone, I have a problem.
ConfigManager.java:

Code:

package com.commands.maxx;

import java.io.File;
import java.io.IOException;
import java.util.logging.Level;

import org.bukkit.Bukkit;
import org.bukkit.World;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.configuration.file.YamlConfiguration;

import com.sk89q.worldedit.BlockVector;
import com.sk89q.worldedit.bukkit.selections.CuboidSelection;
import com.sun.istack.internal.logging.Logger;

public class WorldEditConfigManager {
    File file = new File("plugins/MysteriousCommands/area.yml");
    FileConfiguration cfg = YamlConfiguration.loadConfiguration(this.file);
  
    public void setArea(CuboidSelection s, String s2) {
        BlockVector min = s.getNativeMinimumPoint().toBlockVector();
        BlockVector max = s.getNativeMaximumPoint().toBlockVector();
        cfg.set("area." + s2 + ".world", s.getWorld().getName());
        cfg.set("area." + s2 + ".minX", min.getBlockX());
        cfg.set("area." + s2 + ".minY", min.getBlockY());
        cfg.set("area." + s2 + ".minZ", min.getBlockZ());
        cfg.set("area." + s2 + ".maxX", max.getBlockX());
        cfg.set("area." + s2 + ".maxY", max.getBlockY());
        cfg.set("area." + s2 + ".maxZ", max.getBlockZ());
        try {
            cfg.save(file);
        } catch (IOException err) {
            Logger.getLogger(WorldEditConfigManager.class.getName(), null).log(Level.SEVERE, null, err);
        }
    }
  
    public CuboidSelection getAreas() {
        for (String s : cfg.getConfigurationSection("area").getKeys(false)) {
            World world = Bukkit.getWorld(cfg.getString("area." + s + ".world"));
           
int minX = cfg.getInt("area." + s + ".minX");
            int minY = cfg.getInt("area." + s + ".minY");
            int minZ = cfg.getInt("area." + s + ".minZ");
            int maxX = cfg.getInt("area." + s + ".maxX");
            int maxY = cfg.getInt("area." + s + ".maxY");
            int maxZ = cfg.getInt("area." + s + ".maxZ");
            BlockVector v = new BlockVector(minX, minY, minZ);
            BlockVector v2 = new BlockVector(maxX, maxY, maxZ);
            return new CuboidSelection(world, v, v2);
        }
        return null;
    }
}

When I use getAreas in an other Java class, I want to get every areas from my config file.
Config file (area.yml):

Code:

area:
  '1':
    world: world
    minX: 53
    minY: 68
    minZ: 178
    maxX: 70
    maxY: 70
    maxZ: 199
  spawn:
    world: world
    minX: 24
    minY: 74
    minZ: 190
    maxX: 43
    maxY: 85
    maxZ: 200

How can I get every area?
With for (String s : cfg.getConfigurationSection("area").getKeys(false)) { } I can get every section from area like '1' & spawn but I can't figure out how can I get every areas. Thank you.