From dcf5373ce997f8f752fd2f9b26a809ffbbeac4bf Mon Sep 17 00:00:00 2001
From: XiaoMoMi <littlemomi@qq.com>
Date: Tue, 18 Nov 2025 23:07:01 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E9=85=8D=E6=96=B9=E5=8C=85?=
 =?UTF-8?q?=E5=A4=84=E7=90=86?=
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---
 .../bukkit/plugin/network/BukkitNetworkManager.java            | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/network/BukkitNetworkManager.java b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/network/BukkitNetworkManager.java
index 99cf38b5f..4d7761189 100644
--- a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/network/BukkitNetworkManager.java
+++ b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/network/BukkitNetworkManager.java
@@ -3044,10 +3044,11 @@ public class BukkitNetworkManager implements NetworkManager, Listener, PluginMes
         @Override
         public void onPacketSend(NetWorkUser user, ByteBufPacketEvent event) {
             if (Config.disableItemOperations()) return;
+            BukkitServerPlayer player = (BukkitServerPlayer) user;
+            if (!player.isOnline()) return;
             MutableBoolean changed = new MutableBoolean(false);
             FriendlyByteBuf buf = event.getBuffer();
             BukkitItemManager itemManager = BukkitItemManager.instance();
-            BukkitServerPlayer player = (BukkitServerPlayer) user;
             Object friendlyBuf = FastNMS.INSTANCE.constructor$FriendlyByteBuf(buf.source());
             List<RecipeBookEntry<ItemStack>> entries = buf.readCollection(ArrayList::new, byteBuf -> {
                 RecipeBookEntry<ItemStack> entry = RecipeBookEntry.read(byteBuf, __ -> itemManager.wrap(FastNMS.INSTANCE.method$FriendlyByteBuf$readItem(friendlyBuf)));