Player Is Already Removed From Player Chunk Loader (Folia)

What the log looks like

java\.lang\.IllegalStateException: Player is already removed from player chunk loader
io\.papermc\.paper\.chunk\.system\.RegionizedPlayerChunkLoader\.removePlayer

How to fix it

1. Check the stack trace right below 'Could not pass event PlayerJoinEvent' or look for plugin .jar names (such as AuthMe, spawn plugins, or custom plugins) to identify the offending plugin.
2. Update the identified plugin to a version explicitly built for Folia compatibility, or disable its join-teleport / join-kick feature in its configuration.
3. If a plugin like AuthMe is teleporting players to a login spawn on join, disable its spawn-on-join setting or replace it with a Folia-native authentication/spawn plugin.
4. If you are the plugin developer, stop calling player.kick() or player.teleportAsync() inside PlayerJoinEvent: use AsyncPlayerPreLoginEvent or PlayerLoginEvent to reject logins, use PlayerSpawnLocationEvent to set initial join coordinates, or delay the action by 1 tick using player.getScheduler().run().

Check your own log