TileEntity

Make a test without the mod serializationisbad

Make a test without Embeddium

Same issue without swplanets?

Use a custom Launcher like FTB App, MultiMC or At Launcher and import this modpack

Does it work without these 2 mods? Just with Forge?

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

Change the RAM allocation from -Xmx4096m to -Xmx6G

The link is not available anymore - use https://paste.ee/

If you are using AMD/ATI, get the latest drivers from the website (do not update via system) If not, add the crash-report with sites like https://paste.ee/

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

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

Make a test without the mod watut

RLCraft is a 1.12.2 modpack So you will need Java 8 to run this modpack There is already a serverpack - at Additional Files, download the Server Pack - so you don't need to install Forge separately https://www.curseforge.com/minecraft/modpacks/rlcraft/files/4612979/additional-files

Also make a test without Citadel and the mods requiring it - or try other builds

Remove citresewn

I have no idea Switch to a pre-configured modpack and use it as working base - then add some mods one by one

Remove rubidium-extra

Maybe an issue/conflict with FTB Chunks and Optifine Make a test without Optifine

Remove modernfix

Remove DamageIndicatorsMod from the server - you can keep it in your client This mod is a client-side-only mod

Use Java 17 instead of Java 21

The mclo link is incomplete

And without SmoothBoot?

Remove Optifine and Rubidium

Add the lines of the start script