已处理 额外槽位 放得进东西 拿不出来东西

额外槽位 放得进东西 拿不出来东西
报错

[18:14:37 INFO] [Console]: ♦ ArcartX | 错误: 来自 [处理发包发生异常]
[18:14:37 WARN] [Minecraft]: 错误日志
java.lang.IllegalStateException: Cannot encode empty ItemStack
        at knot/net.minecraft.class_1799.method_57358(ItemStackMixin_Vanilla.java:401) ~[server-intermediary.jar:?]
        at priv.seventeen.artist.arcartx.nms.v1_21_1.ItemStackNMS.item2Json(ItemStackNMS.java:22) ~[?:?]
        at priv.seventeen.artist.arcartx.nms.ItemStackNMS$Companion$INSTANCE$2$1.item2json(ItemStackNMS.kt:18) ~[?:?]
        at priv.seventeen.artist.arcartx.database.slot.SlotDatabase.serializeItemStack(SlotDatabase.kt:16) ~[?:?]
        at priv.seventeen.artist.arcartx.database.slot.SlotDatabaseSQLITE.setSlotData(SlotDatabaseSQLITE.kt:87) ~[?:?]
        at priv.seventeen.artist.arcartx.core.entity.data.ArcartXPlayer.setSlotItemStack(ArcartXPlayer.kt:125) ~[?:?]
        at priv.seventeen.artist.arcartx.internal.network.packet.client.CPackClickSlot.handlePlayerClick(CPackClickSlot.kt:94) ~[?:?]
        at priv.seventeen.artist.arcartx.internal.network.packet.client.CPackClickSlot.handle(CPackClickSlot.kt:32) ~[?:?]
        at priv.seventeen.artist.arcartx.internal.network.packet.PacketBase.run(PacketBase.kt:19) ~[?:?]
        at priv.seventeen.artist.arcartx.internal.network.NetWorkManager.onPluginMessageReceived(NetWorkManager.kt:109) ~[?:?]
        at knot/io.izzel.arclight.common.mod.plugin.messaging.ArclightPluginChannel.dispatchMessage(ArclightPluginChannel.java:96) ~[arclight-1.21.1-1.0.1-SNAPSHOT-2b58ff4.jar:?]
        at knot/io.izzel.arclight.fabric.mod.plugin.messaging.ArclightFabricPayloadHandler.lambda$receive$0(ArclightFabricPayloadHandler.java:22) ~[arclight-1.21.1-1.0.1-SNAPSHOT-2b58ff4.jar:?]
        at knot/net.minecraft.class_3738.run(class_3738.java:18) ~[server-intermediary.jar:?]
        at knot/net.minecraft.class_1255.method_18859(BlockableEventLoopMixin.java:162) ~[server-intermediary.jar:?]
        at knot/net.minecraft.class_4093.method_18859(class_4093.java:23) ~[server-intermediary.jar:?]
        at knot/net.minecraft.server.MinecraftServer.method_24306(MinecraftServerMixin.java:864) ~[server-intermediary.jar:?]
        at knot/net.minecraft.server.MinecraftServer.method_18859(MinecraftServerMixin.java:173) ~[server-intermediary.jar:?]
        at knot/net.minecraft.class_1255.method_16075(BlockableEventLoopMixin.java:136) ~[server-intermediary.jar:?]
        at knot/net.minecraft.server.MinecraftServer.method_20415(MinecraftServerMixin.java:846) ~[server-intermediary.jar:?]
        at knot/net.minecraft.server.MinecraftServer.method_16075(MinecraftServerMixin.java:840) ~[server-intermediary.jar:?]
        at knot/net.minecraft.class_1255.method_5383(BlockableEventLoopMixin.java:121) ~[server-intermediary.jar:?]
        at knot/net.minecraft.server.MinecraftServer.method_16208(MinecraftServerMixin.java:814) ~[server-intermediary.jar:?]
        at knot/net.minecraft.server.MinecraftServer.method_29741(MinecraftServerMixin.java:702) ~[server-intermediary.jar:?]
        at knot/net.minecraft.server.MinecraftServer.method_29739(MinecraftServerMixin.java:281) ~[server-intermediary.jar:?]
        at java.base/java.lang.Thread.run(Thread.java:1583) [?:?]