Your problem is already fixed probably, but for the people who are searching for a fix, follow my steps

  1. Search for CMD and run it as administrator
  2. Type in the bar: netsh winsock reset
  3. It should be fixed!
  4. If it still doesn't work, try contacting Mojang, the creators of Minecraft
Answer from PixelTubeYT on Stack Exchange
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Reddit
reddit.com › r/moddedmc › internal exception java.lang.nullpointerexception can not invoke "net.minecraft.nbt.compoundtag.m_128459_(string) | forge 1.20.1 server
r/ModdedMC on Reddit: internal exception java.lang.nullpointerexception can not invoke "net.minecraft.nbt.compoundtag.m_128459_(string) | Forge 1.20.1 Server
April 17, 2024 -

when people try to connect to my server, they receive this error message
internal exception java.lang.nullpointerexception can not invoke "net.minecraft.nbt.compoundtag.m_128459_(string)

i also received this error message as well but during this test for some reason it let me join the server, i've tested this out on singleplayer as well and the world works fine nothing seems to be corrupted it just doesn't work for the server.
we've also made multiple worlds for this specific pack i've made and they all have had this problem, randomly sometimes people will be able to join and play normally but other times they get this error and they cant play.
friends latest.log: https://mclo.gs/mHmks83
servers lastest.log: https://mclo.gs/si9AJk2

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Reddit
reddit.com › r/minecraft › java.lang.nullpointerexception: group
r/Minecraft on Reddit: java.lang.nullpointerexception: group
October 29, 2018 -

My husband is having trouble connecting to my server when i try to open to Lan. It was working yesterday and now after turning both mine and his pc’s off for the night he cant connect.
He keeps getting this error:
java.lang.nullpointerexception: group
Sometimes on my screen i can see that he has joined the game, then a second later it reads that he has left the game. On his screen it just says "Failed to connect to the server disconnected”
Hope someone can help :)

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Minecraft Forum
minecraftforum.net › home › minecraft forum › support › java edition support › modded server error: java.lang.nullpointerexception: unexpected error
Modded Server Error: java.lang.NullPointerException: Unexpected error - Java Edition Support - Support - Minecraft Forum - Minecraft Forum
August 26, 2022 - I was playing a modded server, tried to use a spell from Ars Magica 2, and got kicked. Every time I join the launcher crashes and it gives the same error message. Someone else on the server was able to use the exact same spell with no problem before I did.
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Aternos Community
board.aternos.org › thread › 85052-java-lang-nullpointerexception-unexpected-error
java.lang.NullPointerException: Unexpected error - Server - Aternos Community
January 7, 2022 - Try deleting the config folder which is located in the minecraft installation path (enter %appdata%/.minecraft in the file explorer ) and if it doesn't work then try deleting aether mod
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Forge Forums
forums.minecraftforge.net › home › minecraft forge › support & bug reports › cant get into my server due to java.lang.nullpointerexception [1.19.2]
Cant get into my server due to java.lang.NullPointerException [1.19.2] - Support & Bug Reports - Forge Forums
March 23, 2023 - ... Before digging deeper, I’d try stripping the pack down to just Create and Structure Gel to see which one triggers the crash, then add mods back one by one. The error in your log points to something firing during world load, usually a bad mixin or missing dependency.
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YouTube
youtube.com › watch
How To Fix Minecraft Java.Lang.NullPointerException Error - YouTube
Learn how to fix the java.lang.NullPointerException error in Minecraft Java Edition on Windows 11 and PC. This tutorial covers common causes and solutions, i...
Published   May 30, 2025
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YouTube
youtube.com › watch
How To Fix Minecraft Java.Lang.NullPointerException Error [2025] - YouTube
How to Fix the java.lang.NullPointerException Error in Minecraft Java Edition on Windows 11 or PC: This tutorial helps you identify common causes and solutio...
Published   June 19, 2025
Find elsewhere
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GitHub
github.com › Asek3 › Rubidium › issues › 629
[1.20.1] Multiplayer Loading Crash "Error: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.texture.TextureAtlasSprite.m_118367_(double)" · Issue #629 · Asek3/Rubidium
September 27, 2023 - The game crashed whilst encountered exception while building chunk meshes Error: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.texture.TextureAtlasSprite.m_118367_(double)" because "sprite" is null ---- Min...
Author   AlexisJacquemin
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Minecraft Forum
minecraftforum.net › home › minecraft forum › support › java edition support › java.lang.nullpointerexception, need fix please help
java.lang.NullPointerException, need fix please help - Java Edition Support - Support - Minecraft Forum - Minecraft Forum
Saves can be found in your .minecraft/minecraft ... Quote from BlueWaste Anyone know how to fix this problem? I have search everywhere but nothing, so if anyone know how to fix it, it would help allot. And it's NOT for a SERVER, it's for the client 34 mods loaded mod_betterDungeons : Available (BetterDungeons.zip) java.lang.NullPointerException at mod_betterDungeons.getRandomMap(mod_betterDungeons.java:1268) at BetterDungeonsJungleCaves.(BetterDungeonsJungleCaves.java:38) at mod_betterDungeons.generateSurface(mod_betterDungeons.java:388) at BaseMod.generate(BaseMod.java:147) It seems that BetterDungeons is crashing; have you followed the installation instructions for that mod correctly?
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Planet Minecraft
planetminecraft.com › forums › help › javaedition › internal exception: java.lang.nullpointerexception
Internal Exception: java.lang.NullPointerException
March 21, 2015 - Alternatively, uninstall all of your mods, and reinstall them one by one to determine which is the problematic mod. If you don't use mods, then just reinstall your Minecraft. This should fix the problem. ... Gotcha guys. I'm on it ---- I recently re-re-installed MC so the error log is empty I'm afraid!
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Forge Forums
forums.minecraftforge.net › home › minecraft forge › support & bug reports › unexpected error error: java.lang.nullpointerexception
Unexpected error Error: java.lang.NullPointerException - Support & Bug Reports - Forge Forums
November 11, 2018 - Before digging deeper, I’d try stripping the pack down to just Create and Structure Gel to see which one triggers the crash, then add mods back one by one. The error in your log points to something firing during world load, usually a bad mixin or missing dependency.
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YouTube
youtube.com › watch
How To Fix Minecraft Java.Lang.NullPointerException ...
To learn more, please visit the YouTube Help Center: https://www.youtube.com/help
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Minecraft Forum
minecraftforum.net › home › minecraft forum › support › java edition support › error: java.lang.nullpointerexception
Error: java.lang.NullPointerException - Java Edition Support - Support - Minecraft Forum - Minecraft Forum
The game crashed whilst unexpected error Error: java.lang.NullPointerException: Cannot invoke "net.minecraft.world.level.biome.Biome.m_47560_()" because "p_108801_" is null · here is the crash log · ---- Minecraft Crash Report ---- // You're mean. Time: 2023-12-07 23:48:37 Description: Unexpected error ·
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Fossils and Archeology Mod Revival Wiki
fossils-archeology.fandom.com › f › p › 3320054632415559970 › r › 3587255587307848309
I keep getting the "Error: java.lang.NullPointerException: Initializing game" and i cannot fix it | Fandom
July 17, 2018 - </p><p> </p><p> I'm not the best with this stuff so If anyone can help me I would be very greatful! ;-; </p> ... <p>Your llibrary is the wrong version. You're using llibrary-1.7.14-1.12.2, which is for Minecraft 1.12, not 1.7.10 (which this ...
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YouTube
youtube.com › quick and easy
How To Fix Minecraft java.lang.NullPointerException [Very EASY!] - YouTube
In this video I will show you how to fix minecraft java.lang.nullpointerexception.Hit the Like button and Subscribe to the channel to receive various useful ...
Published   February 5, 2023
Views   100K
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CubeCoders Support
discourse.cubecoders.com › technical support
Startup Issue with Minecraft - Internal Exception: java.lang.NullPointerException - Technical Support - CubeCoders Support
November 17, 2024 - System Information Field Value Operating System Windows 11 Product AMP ‘Phobos’ v2.6.0.4 (Mainline) Virtualization Docker Application Minecraft Module MinecraftModule Running in Container Yes Current State Ready Problem Description Issue When I try to log onto the server I get that error code.
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Minecraft Forum
minecraftforum.net › home › minecraft forum › support › java edition support › java.lang.nullpointerexception: unexpected error please help.
java.lang.NullPointerException: Unexpected error please help. - Java Edition Support - Support - Minecraft Forum - Minecraft Forum
August 21, 2024 - ---- Minecraft Crash Report -------- Minecraft Crash Report ----// Surprise! Haha. Well, this is awkward. Time: 8/21/24 10:54 AMDescription: Unexpected error java.lang.NullPointerException: Unexpected error at net.minecraft.entity.Entity.func_226263_P_(Entity.java:234) ~[?:?] {re:computing_frames,pl:accesstransformer:B,re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:A} at net.minecraft.client.renderer.WorldRenderer.redirect$cbp000$citadel_getTeamColor(WorldRenderer.java:13176) ~[?:?] {re:mixin,pl:accesstransformer:B,xf:fml:twilightforest:render,xf:fml:journeymap