at net.blay09.mods.cookingforblockheads.KitchenMultiBlock.findNeighbourKitchenBlocks(KitchenMultiBlock.java:63) ~[?:8.0.0] {re:classloading}

How can I help, what logs can I provide or any other information?

Version and the exception that caused the crash (the thing before "at"). And since this seems to be an isolated issue, the full log would be good too, since it might be different mods clashing with each other or something.

Part 1: I'll get more information.

[Server thread/ERROR] [minecraft/MinecraftServer]: Encountered an unexpected exception
java.lang.StackOverflowError: null
at net.minecraft.world.World.func_189509_E(World.java:133) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:lithium.mixins.json:avoid_allocations.MixinWorld,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.world.World.func_175690_a(World.java:715) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:lithium.mixins.json:avoid_allocations.MixinWorld,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.world.chunk.Chunk.func_177424_a(Chunk.java:390) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:classloading,xf:fml:xaerominimap:xaero_chunkclass,pl:runtimedistcleaner:A}
at net.minecraft.world.World.func_175625_s(World.java:691) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:lithium.mixins.json:avoid_allocations.MixinWorld,pl:mixin:A,pl:runtimedistcleaner:A}

I see the names of a few other mods, I'll admit I'm not the most Java savvy.

Here is the crashlog
crash-2020-03-18_16.27.24-server.txt

This is most likely caused by Lithium and unrelated to Cooking for Blockheads.

Alright, thank you.

I am removing all other mods except Cooking for Blockheads.

I removed a large amount of mods and a few APIs that could be causing the problem. This is what I am left with.

[Server thread/FATAL] [minecraft/ThreadTaskExecutor]: Error executing task on Server
java.lang.RuntimeException: Attempted to load class net/minecraft/client/renderer/texture/AtlasTexture for invalid dist DEDICATED_SERVER
at net.minecraftforge.fml.loading.RuntimeDistCleaner.processClass(RuntimeDistCleaner.java:71) ~[forge-1.15.2-31.1.18.jar:31.1] {}
at cpw.mods.modlauncher.serviceapi.ILaunchPluginService.processClass(ILaunchPluginService.java:103) ~[modlauncher-5.0.0-milestone.4.jar:5.0.0-milestone.4+67+b1a340b] {}
at cpw.mods.modlauncher.LaunchPluginHandler.offerClassNodeToPlugins(LaunchPluginHandler.java:85) ~[modlauncher-5.0.0-milestone.4.jar:?] {}
at cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:115) ~[modlauncher-5.0.0-milestone.4.jar:?] {}
at cpw.mods.modlauncher.TransformingClassLoader$DelegatedClassLoader.findClass(TransformingClassLoader.java:239) ~[modlauncher-5.0.0-milestone.4.jar:?] {}
at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:126) ~[modlauncher-5.0.0-milestone.4.jar:?] {}
at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:96) ~[modlauncher-5.0.0-milestone.4.jar:?] {}
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_241] {}
at net.blay09.mods.cookingforblockheads.container.slot.SlotOvenTool.(SlotOvenTool.java:12) ~[?:8.0.0] {re:classloading}
at net.blay09.mods.cookingforblockheads.container.OvenContainer.(OvenContainer.java:44) ~[?:8.0.0] {re:classloading}
at net.blay09.mods.cookingforblockheads.tile.OvenTileEntity.createMenu(OvenTileEntity.java:453) ~[?:8.0.0] {re:classloading}
at net.minecraftforge.fml.network.NetworkHooks.openGui(NetworkHooks.java:206) ~[?:?] {re:classloading}
at net.minecraftforge.fml.network.NetworkHooks.openGui(NetworkHooks.java:172) ~[?:?] {re:classloading}
at net.blay09.mods.cookingforblockheads.block.OvenBlock.func_225533_a_(OvenBlock.java:115) ~[?:8.0.0] {re:classloading}
at net.minecraft.block.BlockState.func_227031_a_(BlockState.java:269) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.server.management.PlayerInteractionManager.func_219441_a(PlayerInteractionManager.java:334) ~[?:?] {re:classloading}
at net.minecraft.network.play.ServerPlayNetHandler.func_184337_a(ServerPlayNetHandler.java:853) ~[?:?] {re:classloading}
at net.minecraft.network.play.client.CPlayerTryUseItemOnBlockPacket.func_148833_a(SourceFile:36) ~[?:?] {re:classloading}
at net.minecraft.network.play.client.CPlayerTryUseItemOnBlockPacket.func_148833_a(SourceFile:10) ~[?:?] {re:classloading}
at net.minecraft.network.PacketThreadUtil.func_225383_a(SourceFile:21) ~[?:?] {re:classloading}
at net.minecraft.util.concurrent.TickDelayedTask.run(SourceFile:18) ~[?:?] {re:classloading}
at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213166_h(SourceFile:144) [?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.util.concurrent.RecursiveEventLoop.func_213166_h(SourceFile:23) [?:?] {re:classloading}
at net.minecraft.server.MinecraftServer.func_213166_h(MinecraftServer.java:731) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.server.MinecraftServer.func_213166_h(MinecraftServer.java:141) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213168_p(SourceFile:118) [?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.server.MinecraftServer.func_213205_aW(MinecraftServer.java:714) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.server.MinecraftServer.func_213168_p(MinecraftServer.java:708) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213161_c(SourceFile:127) [?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.server.MinecraftServer.func_213202_o(MinecraftServer.java:694) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:641) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at java.lang.Thread.run(Unknown Source) [?:1.8.0_241] {}

I will also say that this line "at net.blay09.mods.cookingforblockheads.KitchenMultiBlock.findNeighbourKitchenBlocks(KitchenMultiBlock.java:48) ~[?:8.0.0] {re:classloading}" is repeated maybe 300 times and then the server crashes.

Newly released v8.0.1 should fix the problem.

Could you post a screenshot of your kitchen? This seems to be a weird mod conflict, or it only happens on specific kitchen setups. - nevermind, I think I found the issue

Is there anything else I can do to help?