TileEntity

Add the mod lmft: https://www.curseforge.com/minecraft/mc-mods/lmft If there is no change, you have to remove the mods in groups/one by one until you find the one causing this issue

https://www.curseforge.com/minecraft/search?page=1&pageSize=20&sortBy=relevancy&class=modpacks

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

Did you check for the mods ingame (via creative mode) Or maybe use a pre-configured modpack as working base

Another Minecraft Launcher https://multimc.org/#Download or https://atlauncher.com/downloads

Remove these mods and combine OptiFine HD U I6 with Forge 47.2.18 Start with Optifine - without any other mods - if this works, add the mods one by one or in groups until you find the mod, conflicting with Optifine

Make a test with another Launcher like MultiMC or AT Launcher

Also add https://www.curseforge.com/minecraft/mc-mods/textrues-embeddium-options https://www.curseforge.com/minecraft/mc-mods/rubidium-extra

Delete the config of these mods and try other builds - maybe also replace Rubidium with Embeddium

Try Rubidium + Oculus

Make a test without Optifine

There are client-side-only mods in your server Start with removing mna (Mana and Artifice)

Make a test without Rubidium/Oculus, the Xaero mods, creativecore (and mods requiring it), do_a_barrel_roll and supplementaries

Make a test without modernfix

Yes, but nothing mentioned

I have no idea

Do you have these issues in an existing world, or does this happen to new worlds, too?

Make tests with a new world

Add the crash-report

Mods duplicados encontrados: 14ID de mod: 'rubidium' de los archivos mod: rubidium-mc1.20.1-0.7.1a.jar, embeddium-0.3.12 mc1.20.1.jar Remove Rubidium

Remove Rubidium

Remove all mods and make a test just with Forge - if this works, add the mods one by one or in groups Maybe you are using a mod which is not compatible with your current Forge build

Make a test just with Forge - without any mods

Try this: https://maven.minecraftforge.net/net/minecraftforge/forge/1.20.1-47.2.0/forge-1.20.1-47.2.0-installer.jar

Which build?