Doesn't want to load at all. Just says [ProtocolLib] INTERNAL ERROR: Cannot load ProtocolLib.
My server version is 1.20.6 and i know that it's not any of the other plugins that i have installed because i removed all of them and the problem still persisted.
Crash Log:
[12:28:23 INFO]: [ProtocolLib] Loading server plugin ProtocolLib v5.2.0-SNAPSHOT-679
[12:28:23 WARN]: [ProtocolLib] Version (MC: 1.20.6) has not yet been tested! Proceed with caution.
[12:28:24 ERROR]: [ProtocolLib] Assuming package version: v1_20_R1
[12:28:24 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.IllegalArgumentException: Unable to find a field that matches {modifiers=[required: 10000, banned: 1000], type={ type input instanceof interface java.util.Map }}
at ProtocolLib.jar//com.comphenix.protocol.reflect.FuzzyReflection.getField(FuzzyReflection.java:352)
at ProtocolLib.jar//com.comphenix.protocol.injector.packet.PacketRegistry.createNewRegister(PacketRegistry.java:183)
at ProtocolLib.jar//com.comphenix.protocol.injector.packet.PacketRegistry.initialize(PacketRegistry.java:334)
at ProtocolLib.jar//com.comphenix.protocol.injector.packet.PacketRegistry.getClientPacketTypes(PacketRegistry.java:369)
at ProtocolLib.jar//com.comphenix.protocol.injector.PacketFilterManager.(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:510)
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:286)
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1136)
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:323)
at java.base/java.lang.Thread.run(Thread.java:1583)
Dump:
Parameters:
[NULL]
Sender:
com.comphenix.protocol.ProtocolLib@6e9e689[
statistics=
packetTask=
tickCounter=0
configExpectedMod=-1
updater=com.comphenix.protocol.updater.SpigotUpdater@6d24b9c5
redirectHandler=
scheduler=com.comphenix.protocol.scheduler.DefaultScheduler@2430d746
commandProtocol=
commandPacket=
commandFilter=
packetLogging=
skipDisable=false
isEnabled=false
loader=io.papermc.paper.plugin.manager.DummyBukkitPluginLoader@6a5d1293
server=CraftServer{serverName=Paper,serverVersion=1.20.6-136-88d76d9,minecraftVersion=1.20.6}
file=plugins.paper-remapped\ProtocolLib.jar
description=org.bukkit.plugin.PluginDescriptionFile@31f814ea
pluginMeta=org.bukkit.plugin.PluginDescriptionFile@31f814ea
dataFolder=plugins\ProtocolLib
classLoader=PluginClassLoader{plugin=ProtocolLib v5.2.0-SNAPSHOT-679, 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@5537eb90
lifecycleEventManager=io.papermc.paper.plugin.lifecycle.event.PaperLifecycleEventManager@514dba1e
allowsLifecycleRegistration=true
]
Version:
ProtocolLib v5.2.0-SNAPSHOT-679
Java Version:
21.0.3
Server:
1.20.6-136-88d76d9 (MC: 1.20.6)

[12:28:24 INFO]: [Geyser-Spigot] Loading server plugin Geyser-Spigot v2.3.1-SNAPSHOT
[12:28:25 INFO]: [Geyser-Spigot] Loading extensions...
[12:28:25 INFO]: [Geyser-Spigot] Loaded 0 extension(s)
[12:28:25 INFO]: Server permissions file permissions.yml is empty, ignoring it
[12:28:25 INFO]: [ProtocolLib] Enabling ProtocolLib v5.2.0-SNAPSHOT-679
[12:28:25 ERROR]: ******************************************************
[12:28:25 ERROR]: *** ProtocolLib does not support plugin reloaders! ***
[12:28:25 ERROR]: *** Please use the built-in reload command! ***
[12:28:25 ERROR]: ******************************************************
[12:28:25 INFO]: [ProtocolLib] Disabling ProtocolLib v5.2.0-SNAPSHOT-679

This is fixed in the latest dev builds. Find them here: https://ci.dmulloy2.net/job/ProtocolLib/