use sync

src/main/java/pers/xanadu/enderdragon/manager/DragonManager.java

@@ -54,9 +54,6 @@ public class DragonManager {
     private static final Pattern pattern_attacker_top = Pattern.compile("%attacker_top_(\\d+)%");
 
     public static void reload(){
-        new BukkitRunnable(){
-            @Override
-            public void run(){
         dragons.clear();
         mp.clear();
         dragon_names.clear();
@@ -102,9 +99,6 @@ public class DragonManager {
         dragons.sort((o1, o2) -> o2.priority - o1.priority);
         RewardManager.reload();
     }
-        }.runTaskAsynchronously(plugin);
-
-    }
     public static MyDragon judge(){
         if(Config.special_dragon_jude_mode.equalsIgnoreCase("weight")){
             int cnt = 0, random = ThreadLocalRandom.current().nextInt(0, sum);

src/main/java/pers/xanadu/enderdragon/manager/GuiManager.java

@@ -17,9 +17,6 @@ import static pers.xanadu.enderdragon.EnderDragon.plugin;
 public class GuiManager {
     private static HashMap<String, GUIWrapper> f = new HashMap<>();
     public static void loadGui(){
-        new BukkitRunnable(){
-            @Override
-            public void run(){
         File folder = new File(plugin.getDataFolder(),"gui");
         if(!folder.exists()) return;
         File[] files = folder.listFiles();
@@ -37,8 +34,6 @@ public class GuiManager {
             }
         }
     }
-        }.runTaskAsynchronously(plugin);
-    }
     public static void disable(){
         f.clear();
     }