TileEntity

Remove lithium or modernfix

Also remove sodiumdynamiclights from the server

Rechiseled is not working - there is an issue with the supermartijn mods Maybe you will need older builds of these There are several 1.12.2 builds: https://www.curseforge.com/minecraft/mc-mods/supermartijn642s-config-lib/files/all?page=1&pageSize=20&version=1.12.2&gameVersionTypeId=1 and https://www.curseforge.com/minecraft/mc-mods/supermartijn642s-core-lib/files/all?page=1&pageSize=20&version=1.12.2&gameVersionTypeId=1

Add crash-reports with sites like https://mclo.gs/ Start with removing veinmining

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

Delete the curios-server.toml file in your config folder If there is no such file, check the worldsave / serverconfig folder

Replace letsdo-API with this build: https://legacy.curseforge.com/minecraft/mc-mods/do-api/files/5468182

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

The supermartijn6 builds and rechiseled builds are not matching - try other builds of the supermartijn mods or remove rechiseled

Also check the worldsave / serverconfig folder If there is no such file, make a test without this mod

Delete the config of RandomTweaker (config folder) If there is no change, remove this mod

Add crash-reports with sites like https://mclo.gs/ Make a test without CustomCursor and/or jeg (justenoughguns)

I have no idea - looks like the log just stops

An Ostimien mob from it is invalid at pos 170,66,-143 Check the config (lycanitesmobs-spawning.cfg) and temporarily disable Ostimien

Backup the world and make a test without alexscaves

It is 1.12.2 - I have no idea if there is a 1.12 pack

Also make a test without EMF (Entity Model Features)

Do you use features of inventory profiles next (ipnext) or is there a change without it?

Keep on this thread:

Remove rubidium - you are already using embeddium, which is a fork of rubidium

It is mentioned in the head lines: Thread: Server thread Stacktrace: at knot//net.minecraft.class_4781.localvar$mjg000$wilderwild$wilderWild$placeThickener(class_4781.java:563)

It is an issue with wilderwild - remove it or try other builds

Add crash-reports with sites like https://mclo.gs/ Delete the config of seasonhud in the config folder

Looks like supplementaries is conflicting with the mod spawn

Use a Custom Launcher like Technic Launcher and search for a "Clean Forge 1.12.2" modpack and use this as working base