TileEntity

Completely reinstall the modpack If there is no change, create a forge profile and add the mods one by one or in groups Or use a pre-configured modpack as working base and add new mods

Make a test with another Launcher like MultiMC or AT Launcher: Create a Forge 1.20.1 profile (forge-47.4.0) and start it once - close it in main menu Then copy the mods from the curseforge mods folder to the new launchers mods folder and test it again

These can be ignored

Hm, I have no idea - nothing mentioned

Add crash-reports with sites like https://mclo.gs/ Furnection (ls_furniture) and Mysticbiomes are not working - make a test without these mods

Maybe try other builds If there is no change, the maybe another mod is conflicting - but not mentioned

Let the friend remove the mod starlight

Does it work without ImmersiveEngineering?

Make a test with another Launcher like MultiMC or AT Launcher: Create a Forge 1.20.1 profile (forge-47.4.0) and start it once - close it in main menu Then copy the mods from the curseforge mods folder to the new launchers mods folder and test it again

Add crash-reports with sites like https://mclo.gs/ Did you make mod changes? The crash refers to ImmersiveEngineering Did you connect Immersive Engineering stuff with contents of electrodynamics?

Is the RAM allocation high enough (-Xmx value)?

And without Ksyxis?

Update your AMD/ATI drivers - get the drivers from their website - do not update via system

There are no issues - what exactly is not working? Does the server crash or is it unjoinable? If you refer to the red error blocks, these can be ignored - these are common recipe and loot_table error - mods are overwriting these

Remove mods one by one or in groups until you find the mod causing this issue

This is a warning and can be ignored - add the new crash or log

Also make a test without Repurposed Structures and/or IDAS (Integrated Dungeons and Structures)

Is there a change without the mod tacz?

Do you place this one in a specific biome related to yungscavebiomes? Make a test without yungscavebiomes

Then it is another mod - I have no idea - maybe a biome related one or similar

And without wetland_whimsy?

Make a test without resourcepacks/Shaders and/or rendering mods (embeddium/Oculus)

Install Java 21 - currently you are using Java 8 https://www.oracle.com/java/technologies/javase/jdk21-archive-downloads.html Use the Windows x64 Installer Test it again - if there is no change, open your start script and replace the word java with the java 21 path: "C:\Program Files\Java\jdk-21\bin\javaw.exe" Keep the quotation marks

Add crash-reports with sites like https://mclo.gs/ Make a test without tacz

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