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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Forge Forums
forums.minecraftforge.net › home › minecraft forge › support & bug reports › error 255; description: unexpected error; java.lang.nullpointerexception: cannot invoke help me please
error 255; Description: Unexpected error; java.lang.NullPointerException: Cannot invoke HELP ME please - Support & Bug Reports - Forge Forums
July 18, 2022 - I use forge 1.18.2 in linux i am using hose pulley of create when this happen Spoiler ---- Minecraft Crash Report ---- // I blame Dinnerbone. Time: 18/07/2022 14:37 Description: Unexpected error java.lang.NullPointerException: Cannot invoke "net.minecraft.world.level.BlockAndTintGetter.m_45517_(n...
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Minecraft Forum
minecraftforum.net › home › minecraft forum › support › java edition support › java.lang.nullpointerexception: cannot invoke "net.minecraft.class_5944.method_34583(string, object)" because "$$2" is null
java.lang.NullPointerException: Cannot invoke "net.minecraft.class_5944.method_34583(String, Object)" because "$$2" is null - Java Edition Support - Support - Minecraft Forum - Minecraft Forum
---- Minecraft Crash Report -------- Minecraft Crash Report ----// Shall we play a game? Time: 2024-07-08 17:27:23Description: Unexpected error java.lang.NullPointerException: Cannot invoke "net.minecraft.class_5944.method_34583(String, Object)" because "$$2" is null at net.minecraft.class_291.method_34431(class_291.java:130) at net.minecraft.class_291.method_34427(class_291.java:123) at net.minecraft.class_286.method_43438(class_286.java:33) at net.minecraft.class_286.method_43433(class_286.java:26) at net.minecraft.class_1921.method_23012(class_1921.java:865) at net.raphimc.immediatelyfast.f
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GitHub
github.com › Asek3 › Rubidium › issues › 629
[1.20.1] Multiplayer Loading Crash "Error: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.texture.TextureAtlasSprite.m_118367_(double)" · Issue #629 · Asek3/Rubidium
September 27, 2023 - The game crashed whilst encountered exception while building chunk meshes Error: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.texture.TextureAtlasSprite.m_118367_(double)" because "sprite" is null ---- Min...
Published   Sep 27, 2023
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SpigotMC
spigotmc.org › threads › java-lang-nullpointerexception-cannot-invoke.559140
Solved - java.lang.NullPointerException: Cannot invoke | SpigotMC - High Performance Minecraft Software
Hi today I tried to connect a MySQL database to my minecraft plugin, unfortunately a lot of errors happened, some I solved but this I didn't succeed, I...
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GitHub
github.com › Asek3 › Oculus › issues › 187
Cannot invoke "net.minecraft.client.renderer. ...
September 17, 2022 - java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.ShaderInstance.m_173350_(String, Object)" because "$$13" is null#187 · Copy link · thedaymare16 · opened · on Sep 17, 2022 · Issue body actions · Minecraft 1.18.2 · oculus-mc1.18.2-1.2.5a.jar ·
Published   Sep 17, 2022
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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

Find elsewhere
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GitHub
github.com › hlysine › create_power_loader › issues › 21
Can't join server: Cannot invoke "net.minecraft.nbt.CompoundTag.m_128437_(String. int)" because "nbt" is null · Issue #21 · hlysine/create_power_loader
March 28, 2024 - Doing so results in being immediately disconnected from the server with the following error message: "Connection Lost: Internal Exception: java.lang.NullPointerException: Cannot invoke 'net.minecraft.nbt.CompoundTag.getString(String, int)' because 'nbt' is null."
Published   Mar 28, 2024
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Minecraft Forum
minecraftforum.net › home › minecraft forum › support › java edition support › error:java.lang.nullpointerexception: cannot invoke "net.minecraft.world.entity.livingentity.m_6117_()" because "entity" is null
Error:java.lang.NullPointerException: Cannot invoke "net.minecraft.world.entity.LivingEntity.m_6117_()" because "entity" is null - Java Edition Support - Support - Minecraft Forum - Minecraft Forum
---- Minecraft Crash Report -------- Minecraft Crash Report ----// Shall we play a game? Time: 2025-02-06 22:44:29Description: Rendering entity in world java.lang.NullPointerException: Cannot invoke "net.minecraft.world.entity.LivingEntity.m_6117_()" because "entity" is null at ewewukek.musketmod.ClientUtilities.poseArm(ClientUtilities.java:54) ~[create-musketmod-1.20.1-forge-1.5.2.jar#250!/:?] {re:mixin,re:classloading} at net.minecraft.client.model.HumanoidModel.handler$zhd000$poseLeftArm(HumanoidModel.java:2038) ~[client-1.20.1-20230612.114412-srg.jar#302!/:?] {re:mixin,pl:accesstransformer
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Forge Forums
forums.minecraftforge.net › home › minecraft forge › support & bug reports › connection lost: internal exception java.lang.nullpointerexception cannot invoke net.minecraft.nbt.compoundtag.m_128459_(string)
Connection Lost: internal exception java.lang.nullpointerexception cannot invoke net.minecraft.nbt.CompoundTag.m_128459_(String) - Support & Bug Reports - Forge Forums
March 16, 2024 - Hi! I am trying to run a custom forge modpack on 1.20.1 and the server appears to start up normally but whenever someone tries to join they get this error: Connection Lost: internal exception java.lang.nullpointerexception cannot invoke net.minecraft.nbt.CompoundTag.m_128459_(String) because nbt ...
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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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TLauncher
tlauncher.org › en › java-complete-version-is-null.html
Error Solution: java.lang.NullPointerException: Complete version is NULL in TLauncher
An error occurs when you try to install the Minecraft version via TLauncher. Solution: 1) Set the correct date and time on your computer. 2) Disable antivirus and firewall (or add the TLauncher and a Java exception).
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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 › 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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Hypixel Forums
hypixel.net › home › forums › hypixel server › hypixel server discussion
Lunar Client: java.lang.nullpointerexception cannot invoke...
July 25, 2023 - Close Minecraft and relaunch Lunar Client. Third Solution: Please don't share the accounts.json file as this contains your account token and other private inforamation!
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Planet Minecraft
planetminecraft.com › forums › help › javaedition › internal exception: java.lang.nullpointerexception
Internal Exception: java.lang.NullPointerException
If you know what you're doing then a quick look through the class files will reveal the problem. 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.
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GitHub
github.com › Creators-of-Create › Create › issues › 5135
[1.20.1][Forge] java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.m_9598_()" because "world" is null · Issue #5135 · Creators-of-Create/Create
June 11, 2023 - [1.20.1][Forge] java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.m_9598_()" because "world" is null#5135
Published   Jul 15, 2023
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SpigotMC
spigotmc.org › threads › java-lang-nullpointerexception.620519
Solved - java.lang.NullPointerException | SpigotMC - High Performance Minecraft Community
Hi, while administering my server I came across the java.lang.NullPointerException error, I don't know what it is related to and it would be nice if...