diff --git a/src/main/java/com/linyuanlin/minecraft/App.java b/src/main/java/com/linyuanlin/minecraft/App.java
index 7dd46c5..097b665 100644
--- a/src/main/java/com/linyuanlin/minecraft/App.java
+++ b/src/main/java/com/linyuanlin/minecraft/App.java
@@ -27,6 +27,7 @@
 public class App extends JavaPlugin implements Listener {
 
     public HashMap<UUID, PlayerData> allPlayers = new HashMap<>();
+    public WorldManager worldManager = new WorldManager();
 
     public void downloadAllUserData() throws Exception {
         for (Player p : Bukkit.getOnlinePlayers()) {
@@ -45,6 +46,8 @@ public void onEnable() {
             e.printStackTrace();
         }
 
+        worldManager.loadWorlds();
+
         getLogger().info("Main system enabled");
     }
 
@@ -200,7 +203,7 @@ public boolean onCommand(CommandSender sender, Command cmd, String cmdlable, Str
                     TextComponent msg = new TextComponent("隊伍成員：" + teamMemberNameString);
                     p1.spigot().sendMessage(msg);
                 }
-                    break;
+                break;
                 default:
                     break;
             }