[17:32:32 WARN]: Could not pass incoming plugin message to PlaceholderAPI v2.11.2
java.lang.IllegalStateException: java.io.EOFException
        at com.google.common.io.ByteStreams$ByteArrayDataInputStream.readUTF(ByteStreams.java:449) ~[PaperSpigot-1.8.8.jar:git-PaperSpigot-f6fba00-9935adc]
        at com.extendedclip.papi.bungeeexpansion.BungeeExpansion.onPluginMessageReceived(BungeeExpansion.java:123) ~[?:?]
        at org.bukkit.plugin.messaging.StandardMessenger.dispatchIncomingMessage(StandardMessenger.java:427) [PaperSpigot-1.8.8.jar:git-PaperSpigot-f6fba00-9935adc]
        at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:2129) [PaperSpigot-1.8.8.jar:git-PaperSpigot-f6fba00-9935adc]
        at net.minecraft.server.v1_8_R3.PacketPlayInCustomPayload.a(SourceFile:55) [PaperSpigot-1.8.8.jar:git-PaperSpigot-f6fba00-9935adc]
        at net.minecraft.server.v1_8_R3.PacketPlayInCustomPayload.a(SourceFile:8) [PaperSpigot-1.8.8.jar:git-PaperSpigot-f6fba00-9935adc]
        at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [PaperSpigot-1.8.8.jar:git-PaperSpigot-f6fba00-9935adc]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_371]
        at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_371]
        at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [PaperSpigot-1.8.8.jar:git-PaperSpigot-f6fba00-9935adc]
        at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:771) [PaperSpigot-1.8.8.jar:git-PaperSpigot-f6fba00-9935adc]
        at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378) [PaperSpigot-1.8.8.jar:git-PaperSpigot-f6fba00-9935adc]
        at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:710) [PaperSpigot-1.8.8.jar:git-PaperSpigot-f6fba00-9935adc]
        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:613) [PaperSpigot-1.8.8.jar:git-PaperSpigot-f6fba00-9935adc]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_371]
Caused by: java.io.EOFException
        at java.io.DataInputStream.readUnsignedShort(Unknown Source) ~[?:1.8.0_371]
        at java.io.DataInputStream.readUTF(Unknown Source) ~[?:1.8.0_371]
        at java.io.DataInputStream.readUTF(Unknown Source) ~[?:1.8.0_371]
        at com.google.common.io.ByteStreams$ByteArrayDataInputStream.readUTF(ByteStreams.java:447) ~[PaperSpigot-1.8.8.jar:git-PaperSpigot-f6fba00-9935adc]
        ... 14 more

降低下版本看看呢 [前置]PlaceholderAPI-2.10.9.jar (395.55 KB, 下载次数: 0)

低版本请使用 2.10.6。

这个报错是由于PlaceholderAPI插件在接收来自BungeeCord的插件消息时发生了java.io.EOFException。这个异常表示在输入过程中意外地到达文件或流的末尾。

有几种可能的原因导致这个异常，例如：

BungeeCord发送的插件消息格式不正确或不匹配
PlaceholderAPI插件版本过旧或不兼容
BungeeCord和PlaceholderAPI之间的网络连接不稳定或中断
要解决这个问题，您可以尝试以下方法：

检查BungeeCord和PlaceholderAPI插件是否都是最新版本，如果不是，请更新它们
检查BungeeCord和PlaceholderAPI插件是否都支持您的服务器版本，如果不是，请更换合适的版本
检查您的服务器网络是否正常，如果有问题，请修复或更换网络

也非常感谢您！