[17:03:15] [User Authenticator #2/INFO]: UUID of player Hang_hy is 7a573a72-a07c-39bb-b0d5-7395d734846c
[17:03:15] [Server thread/ERROR]: Could not pass event PlayerJoinEvent to GrScriptBlock v1.1.0
java.lang.InternalError: Malformed class name
        at java.lang.Class.getSimpleName(Unknown Source) ~[?:1.8.0_241]
        at java.lang.Class.isAnonymousClass(Unknown Source) ~[?:1.8.0_241]
        at co.aikar.timings.MinecraftTimings.lambda$getPluginTaskTimings$0(MinecraftTimings.java:68) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at java.util.concurrent.ConcurrentMap.computeIfAbsent(Unknown Source) ~[?:1.8.0_241]
        at co.aikar.timings.MinecraftTimings.getPluginTaskTimings(MinecraftTimings.java:67) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftTask.<init>(CraftTask.java:46) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftScheduler.runTaskTimer(CraftScheduler.java:159) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftScheduler.runTaskLater(CraftScheduler.java:133) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at cn.gayaguoguo.grscriptblock.t.IiIiiIIiiI.onPlayerJoin(o:115) ~[?:?]
        at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor280.execute(Unknown Source) ~[?:?]
        at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:70) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:513) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.PlayerList.onPlayerJoin(PlayerList.java:370) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.PlayerList.a(PlayerList.java:183) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.LoginListener.b(LoginListener.java:178) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.LoginListener.e(LoginListener.java:68) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.NetworkManager.a(NetworkManager.java:255) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.ServerConnection.c(ServerConnection.java:150) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:948) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:423) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:774) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:666) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_241]
[17:03:15] [Server thread/ERROR]: [ProtocolStringReplacer] Unhandled exception occured in onPacketSending(PacketEvent) for ProtocolStringReplacer
java.lang.NullPointerException: null
        at me.Rothes.ProtocolStringReplacer.PacketListeners.Server.EntityMetadata$1.onPacketSending(EntityMetadata.java:25) ~[?:?]
        at com.comphenix.protocol.injector.SortedPacketListenerList.invokeSendingListener(SortedPacketListenerList.java:195) ~[?:?]
        at com.comphenix.protocol.injector.SortedPacketListenerList.invokePacketSending(SortedPacketListenerList.java:149) ~[?:?]
        at com.comphenix.protocol.injector.PacketFilterManager.handlePacket(PacketFilterManager.java:588) ~[?:?]
        at com.comphenix.protocol.injector.PacketFilterManager.invokePacketSending(PacketFilterManager.java:564) ~[?:?]
        at com.comphenix.protocol.injector.netty.ProtocolInjector.packetQueued(ProtocolInjector.java:338) ~[?:?]
        at com.comphenix.protocol.injector.netty.ProtocolInjector.onPacketSending(ProtocolInjector.java:298) ~[?:?]
        at com.comphenix.protocol.injector.netty.ChannelInjector.processSending(ChannelInjector.java:367) ~[?:?]
        at com.comphenix.protocol.injector.netty.ChannelInjector.access$800(ChannelInjector.java:66) ~[?:?]
        at com.comphenix.protocol.injector.netty.ChannelInjector$3.handleScheduled(ChannelInjector.java:332) ~[?:?]
        at com.comphenix.protocol.injector.netty.ChannelInjector$3.onMessageScheduled(ChannelInjector.java:302) ~[?:?]
        at com.comphenix.protocol.injector.netty.ChannelProxy$2.schedulingRunnable(ChannelProxy.java:127) ~[?:?]
        at com.comphenix.protocol.injector.netty.EventLoopProxy.execute(EventLoopProxy.java:95) ~[?:?]
        at net.minecraft.server.v1_12_R1.NetworkManager.a(NetworkManager.java:200) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.NetworkManager.sendPacket(NetworkManager.java:148) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.PlayerConnection.sendPacket(PlayerConnection.java:1187) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.PlayerList.onPlayerJoin(PlayerList.java:406) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.PlayerList.a(PlayerList.java:183) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.LoginListener.b(LoginListener.java:178) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.LoginListener.e(LoginListener.java:68) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.NetworkManager.a(NetworkManager.java:255) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.ServerConnection.c(ServerConnection.java:150) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:948) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:423) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:774) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:666) ~[PaperSpigot-1.12.2-b1562.jar:git-Paper-1562]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_241]
[17:03:15] [Server thread/ERROR]: Parameters:
  net.minecraft.server.v1_12_R1.PacketPlayOutEntityMetadata@2855fe3b[
    a=1340
    b=[net.minecraft.server.v1_12_R1.DataWatcher$Item@79daa810, net.minecraft.server.v1_12_R1.DataWatcher$Item@4b79e94e, net.minecraft.server.v1_12_R1.DataWatcher$Item@18edc70, net.minecraft.server.v1_12_R1.DataWatcher$Item@62d5e5c, net.minecraft.server.v1_12_R1.DataWatcher$Item@2a9beca1, net.minecraft.server.v1_12_R1.DataWatcher$Item@2e2c4325, net.minecraft.server.v1_12_R1.DataWatcher$Item@593667cc, net.minecraft.server.v1_12_R1.DataWatcher$Item@35851d08, net.minecraft.server.v1_12_R1.DataWatcher$Item@408e11fd, net.minecraft.server.v1_12_R1.DataWatcher$Item@c7747a2, net.minecraft.server.v1_12_R1.DataWatcher$Item@661559e7, net.minecraft.server.v1_12_R1.DataWatcher$Item@7be57570, net.minecraft.server.v1_12_R1.DataWatcher$Item@4bd48208, net.minecraft.server.v1_12_R1.DataWatcher$Item@7da89687, net.minecraft.server.v1_12_R1.DataWatcher$Item@313e22b4, net.minecraft.server.v1_12_R1.DataWatcher$Item@61209f16, net.minecraft.server.v1_12_R1.DataWatcher$Item@e0b95f8]
  ]

[17:03:15] [Server thread/INFO]: Hang_hy[/127.0.0.1:57302] logged in with entity id 1340 at ([xxg]457.5, 100.0, -960.5)
[17:03:16] [Server thread/INFO]: [ + ] 玩家 Hang_hy 进入了 [ 北北 ] 斗罗大陆 !
[17:03:17] [Server thread/INFO]: Hang_hy lost connection: Disconnected
[17:03:17] [Server thread/INFO]: [ - ] 玩家 Hang_hy 退出了 [ 北北 ] 斗罗大陆 !
[17:03:25] [Server thread/INFO]: Unknown command. Type "/help" for help.
[17:03:33] [Server thread/INFO]: Unknown command. Type "/help" for help.
[17:03:37] [Server thread/INFO]: Unknown command. Type "/help" for help.

尝试卸载GrScriptBlock
或者视版本更换为ScriptBlockPlus等插件

看日记应该是GrScriptBlock插件的问题，可能版本不兼容，换个新/旧一些的版本试试。
也有可能是你的bc端没加上这个子服或者配置错误。建议检查一下bc端配置文件，看看是不是子服的ip和端口填错了。

子服名字设置错误也有可能哦，看看servers下面的子服名字有没有设置错误。

主要是这个在Bc不能开，但是单独就能开

你在这放的应该是子服的日记吧。能发下bc端的日记吗？

看一下bc服务器的配置
发一下

bc里头什么都没有，也没有报错也没有别的，子服能正常启动，就是进去就显示这个