InternalException: Cannot invoke 'net.minecraft.nbt.CompoundTag.m_128471_(String)

[Niki4_best]

This error randomly occurs when players trying to join the server
Modlist:
AdLods
Amplified Nether
Badpackets
Blossom
Clumps
Create
Croptopia
Cyclic
Ephero
Flib
Framework
Goblintraders
InventorySpam
Jei
Jer
LibIPN
Naturalist
NextSpring
PierceArrow
RealisticExplosions
SereneSeasons
SkyVillages
Slashblade
TerraBlender
Yung's mods
JoJo wos
kiwi
luki's capitals
nature compass
not enough crashes
player animation
regrowth
sit
takes a pillage
twilight forest
aether
atlas lib
balm
botania
collective
cupboard
fairylight
geckolib
ichun
item production
ambient sounds
attributefix
biomesoplenty
chunk animator
connectivity
creativecore
curious
dungeons arise
fins and tails
forgiving void
gems and jewels
inventorypets
jade
journeymap
kotlin
moonlight
nether exorcism
patchouli
realistic bees
ribbits
skinlayers 3d
tarot cards
upgraded core

[TileEntity]

 

Add the full crash-report or latest.log (logs-folder) with sites like https://paste.ee/ and paste the link to it here

Edited July 8 by TileEntity

[Niki4_best]

https://pastebin.com/MY6TxMSY
Btw it's usually only one player can join and others cant

[TileEntity]

I have no idea - nothing mentioned in the log

[Niki4_best]

That's why i went here. It just instantly kicks you out. Also there's another problem with this modpack. If you're lucky enough to join, after some time (around 20-40 mins) server crashes completely with watchdog error. No log mentions aswell.

[TileEntity]

Same issue with another modpack?

[Niki4_best]

I downgraded to 1.19.4 with same mods, but removed these:
Blossom
Create and its addons
Jade (replaced with WTHIT)
Slash and its addons
JoJo
Twilight Forest
Next Spring
Botania
Inventory pets
No issues yet, but I'm trying to add previously mentioned mods to this build so i can figure out if it's forge 1.20.1 problem or mod's

[1oma1e]

.

Edited November 9 by 1oma1e

[1oma1e]

Hi, I have the same problem with the same numbers, sometimes people can join and sometimes not. Have you found anything that could help us? I see that you've deleted a lot of addons that we also had like Create / Twilight and other mods. Do you use Essentials with your friends? Maybe it's because of that, but I'm not sure. Perhaps we should compare our mods to see which ones are causing this problem? We tried to remove Create, it's working for the moment but let's see if I'll crash again.

Yours sincerely.

[UnixTMDev]

Hate to kinda necro this post, but I've got this exact issue with the Cobblemon Forge modpack.

The only mods that OP and I have in common are Clumps and Kotlin for Forge.

I'll try removing Clumps and get back to y'all if this works.

 

EDIT: Seems promising, this only happens to me ~50% of the time however, so it'll take me a while to CONFIRM that it worked.

Edited December 11 by UnixTMDev
Possible solution for problem

[UnixTMDev]

Nope. Issue persists. No idea what any of us did to deserve this, but I hope it's not Kotlin that does this.