Fix Leaderboard loading

src/de/steamwar/lobby/util/Leaderboard.java

@@ -3,6 +3,7 @@ package de.steamwar.lobby.util;
 import de.steamwar.entity.RArmorStand;
 import de.steamwar.entity.REntity;
 import de.steamwar.entity.REntityServer;
+import de.steamwar.lobby.LobbySystem;
 import de.steamwar.sql.SteamwarUser;
 import de.steamwar.sql.internal.Statement;
 import lombok.AllArgsConstructor;
@@ -36,6 +37,7 @@ public class Leaderboard implements Listener {
         this.configKey = configKey;
         this.location = location;
         this.best = best;
+        Bukkit.getPluginManager().registerEvents(this, LobbySystem.getPlugin());
         update();
     }