TileEntity

Add the latest.log with sites like https://paste.ee/

Add crash-reports with sites like https://paste.ee/ lmft-1.0.2+1.20-forge.jar is conflicting with Connector-1.0.0-beta.15+1.20.1-full.jar - make a test without Connector-1.0.0

There is an issue with Simply-Improved-Terrain - make a test without this mod

I have no idea - maybe use a pre-configured modpack as working base and add some mods one by one

And without EpicFight?

Add the latest.log

Add crash-reports with sites like https://paste.ee/ BetterFoliage requires Forgelin - add this mod: https://legacy.curseforge.com/minecraft/mc-mods/shadowfacts-forgelin/files/2727070

There are some mods involved: Rubidium/Oculus MidnightHats/MidnightLib PlayerAnimator

Maybe the mod yuushya

Also make a test without carpeted

Are there changes without the mod Dimensional-Threading-Reforged?

Mekanism and ImmersiveEngineering In connection with Create, try Create Crafts & Additions https://www.curseforge.com/minecraft/mc-mods/createaddition

Also remove garnished, createcasing and extendedgears Maybe these are not compatible with the create build

Create is conflicting with the railways mod - remove railways (Steam_Rails)

Add the full crash-report with sites like https://paste.ee/

Does it work without HammerLib and the mods requiring it? Also add crash-reports with sites like https://paste.ee/

Add crash-reports with sites like https://paste.ee/ And make sure you add the full crash-report

After adding the crash-report with paste.ee, add the link to it here

Maybe CosmeticArmor

Add crash-reports with sites like https://paste.ee/ Make a test without better_ore_generation

Also remove dungeons_enhanced and betteranimalsplus

Make a test without the_bumblezone, Chunk Pregenerator, zombieawareness, xaeroworldmap and xaerominimap Start with zombieawareness

This is a client issue - your mate is not using the same mods or modpack The issue refers to the mod RecurrentComplex - from the given log, your server is not using this mod - so maybe he is using a different set of mods

The last lines of the log points to an issue [Server thread/ERROR] [KubeJS Server/]: #4: Error occurred while handling event 'EntityEvents.hurt': TypeError: Cannot find function equals in object Function. (server_scripts:events.js#4) But idk if this refers to your issue

Also make a test without KubeJS (and addons)