[15:47:15 WARN]: [ProtocolLib] Version (MC: 1.20.6) has not yet been tested! Proceed with caution.
[15:47:16 ERROR]: [ProtocolLib] Assuming package version: v1_20_R1
[15:47:17 ERROR]:   [ProtocolLib] INTERNAL ERROR: Cannot load ProtocolLib.
  If this problem hasn't already been reported, please open a ticket
  at https://github.com/dmulloy2/ProtocolLib/issues with the following data:
  Stack Trace:
  java.lang.RuntimeException: Failed to find NMS class: network.ProtocolInfo$a
        at ProtocolLib.jar//com.comphenix.protocol.utility.MinecraftReflection.lambda$getMinecraftClass$2(MinecraftReflection.java:1383)
        at java.base/java.util.Optional.orElseThrow(Optional.java:403)
        at ProtocolLib.jar//com.comphenix.protocol.utility.MinecraftReflection.getMinecraftClass(MinecraftReflection.java:1383)
        at ProtocolLib.jar//com.comphenix.protocol.injector.packet.PacketRegistry.createRegisterV1_20_5(PacketRegistry.java:344)
        at ProtocolLib.jar//com.comphenix.protocol.injector.packet.PacketRegistry.initialize(PacketRegistry.java:498)
        at ProtocolLib.jar//com.comphenix.protocol.injector.packet.PacketRegistry.getClientPacketTypes(PacketRegistry.java:538)
        at ProtocolLib.jar//com.comphenix.protocol.injector.PacketFilterManager.<init>(PacketFilterManager.java:120)
        at ProtocolLib.jar//com.comphenix.protocol.injector.PacketFilterBuilder.build(PacketFilterBuilder.java:121)
        at ProtocolLib.jar//com.comphenix.protocol.ProtocolLib.onLoad(ProtocolLib.java:183)
        at io.papermc.paper.plugin.storage.ServerPluginProviderStorage.processProvided(ServerPluginProviderStorage.java:59)
        at io.papermc.paper.plugin.storage.ServerPluginProviderStorage.processProvided(ServerPluginProviderStorage.java:18)
        at io.papermc.paper.plugin.storage.SimpleProviderStorage.enter(SimpleProviderStorage.java:39)
        at io.papermc.paper.plugin.entrypoint.LaunchEntryPointHandler.enter(LaunchEntryPointHandler.java:36)
        at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:508)
        at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:287)
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1140)
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:326)
        at java.base/java.lang.Thread.run(Thread.java:1583)
  Dump:
  Parameters:
    [NULL]
  Sender:
    com.comphenix.protocol.ProtocolLib@1b110016[
      statistics=<null>
      packetTask=<null>
      tickCounter=0
      configExpectedMod=-1
      updater=com.comphenix.protocol.updater.SpigotUpdater@3df7aa2
      redirectHandler=<null>
      scheduler=com.comphenix.protocol.scheduler.DefaultScheduler@105ddb7f
      commandProtocol=<null>
      commandPacket=<null>
      commandFilter=<null>
      packetLogging=<null>
      skipDisable=false
      isEnabled=false
      loader=io.papermc.paper.plugin.manager.DummyBukkitPluginLoader@67d71
      server=CraftServer{serverName=Paper,serverVersion=git-Paper-32,minecraftVersion=1.20.6}
      file=plugins\.paper-remapped\ProtocolLib.jar
      description=org.bukkit.plugin.PluginDescriptionFile@6b82941b
      pluginMeta=org.bukkit.plugin.PluginDescriptionFile@6b82941b
      dataFolder=plugins\ProtocolLib
      classLoader=PluginClassLoader{plugin=ProtocolLib v5.2.1-SNAPSHOT-685, pluginEnabled=false, url=plugins\.paper-remapped\ProtocolLib.jar}
      naggable=true
      newConfig=YamlConfiguration[path='', root='YamlConfiguration']
      configFile=plugins\ProtocolLib\config.yml
      logger=com.destroystokyo.paper.utils.PaperPluginLogger@266936d7
      lifecycleEventManager=io.papermc.paper.plugin.lifecycle.event.PaperLifecycleEventManager@64711c01
      allowsLifecycleRegistration=true
    ]
  Version:
    ProtocolLib v5.2.1-SNAPSHOT-685
  Java Version:
    21.0.2
  Server:
    git-Paper-32 (MC: 1.20.6)