diff --git a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/item/BukkitItemManager.java b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/item/BukkitItemManager.java
index cb79005f7..d021fb237 100644
--- a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/item/BukkitItemManager.java
+++ b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/item/BukkitItemManager.java
@@ -102,12 +102,7 @@ public class BukkitItemManager extends AbstractItemManager<ItemStack> {
 
     @Override
     public Item<ItemStack> s2c(Item<ItemStack> item, Player player) {
-        return this.networkItemHandler.s2c(item, player).map(it -> {
-            System.out.println("有变化");
-            System.out.println(item.getItem());
-            System.out.println(it.getItem());
-            return it;
-        }).orElse(item);
+        return this.networkItemHandler.s2c(item, player).orElse(item);
     }
 
     @Override
diff --git a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/network/PacketConsumers.java b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/network/PacketConsumers.java
index e494e2ccc..874e6ba45 100644
--- a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/network/PacketConsumers.java
+++ b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/network/PacketConsumers.java
@@ -42,7 +42,6 @@ import net.momirealms.craftengine.core.item.CustomItem;
 import net.momirealms.craftengine.core.item.Item;
 import net.momirealms.craftengine.core.item.behavior.ItemBehavior;
 import net.momirealms.craftengine.core.item.context.UseOnContext;
-import net.momirealms.craftengine.core.item.recipe.network.RecipeBookDisplayEntry;
 import net.momirealms.craftengine.core.item.recipe.network.RecipeBookEntry;
 import net.momirealms.craftengine.core.item.recipe.network.display.RecipeDisplay;
 import net.momirealms.craftengine.core.pack.host.ResourcePackDownloadData;
diff --git a/core/src/main/java/net/momirealms/craftengine/core/item/recipe/network/display/slot/ItemStackSlotDisplay.java b/core/src/main/java/net/momirealms/craftengine/core/item/recipe/network/display/slot/ItemStackSlotDisplay.java
index 43faeaec2..2c4fdd786 100644
--- a/core/src/main/java/net/momirealms/craftengine/core/item/recipe/network/display/slot/ItemStackSlotDisplay.java
+++ b/core/src/main/java/net/momirealms/craftengine/core/item/recipe/network/display/slot/ItemStackSlotDisplay.java
@@ -25,7 +25,6 @@ public class ItemStackSlotDisplay implements SlotDisplay {
 
     @Override
     public void applyClientboundData(Player player) {
-        System.out.println("gai ni ma");
         this.item = CraftEngine.instance().itemManager().s2c(this.item, player);
     }