---- Minecraft Crash Report -------- Minecraft Crash Report ----// Surprise! Haha. Well, this is awkward.
Time: 5/12/22 11:23 AMDescription: Exception in server tick loop
java.lang.UnsupportedOperationException: null at me.jellysquid.mods.lithium.common.util.collections.BlockEntityList.get(BlockEntityList.java:264) ~[?:1.4.0] {re:mixin,re:classloading} at me.jellysquid.mods.lithium.common.util.collections.BlockEntityList.get(BlockEntityList.java:16) ~[?:1.4.0] {re:mixin,re:classloading} at nonamecrackers2.witherstormmod.common.event.FormidibombContainerUpdater.onWorldTick(FormidibombContainerUpdater.java:23) ~[?:1.16.5-1.0.1] {re:classloading} at net.minecraftforge.eventbus.ASMEventHandler_2714_FormidibombContainerUpdater_onWorldTick_WorldTickEvent.invoke(.dynamic) ~[?:?] {} at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.eventbus.EventBus$$Lambda$3258/187002994.invoke(Unknown Source) ~[?:?] {} at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.fml.hooks.BasicEventHooks.onPostWorldTick(BasicEventHooks.java:100) ~[?:?] {re:classloading} at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:857) ~[?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:threecore.mixins.json:MinecraftServerMixin,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:APP:structure_gel.mixins.json:MinecraftServerMixin,pl:mixin:APP:roadrunner.mixins.json:world.light_batching.MinecraftServerMixin,pl:mixin:APP:byg.mixins.json:server.MixinMinecraftServer,pl:mixin:A} at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:787) ~[?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:threecore.mixins.json:MinecraftServerMixin,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:APP:structure_gel.mixins.json:MinecraftServerMixin,pl:mixin:APP:roadrunner.mixins.json:world.light_batching.MinecraftServerMixin,pl:mixin:APP:byg.mixins.json:server.MixinMinecraftServer,pl:mixin:A} at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:118) ~[?:?] {re:classloading,xf:OptiFine:default} at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:642) [?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:threecore.mixins.json:MinecraftServerMixin,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:APP:structure_gel.mixins.json:MinecraftServerMixin,pl:mixin:APP:roadrunner.mixins.json:world.light_batching.MinecraftServerMixin,pl:mixin:APP:byg.mixins.json:server.MixinMinecraftServer,pl:mixin:A} at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:232) [?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:threecore.mixins.json:MinecraftServerMixin,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:APP:structure_gel.mixins.json:MinecraftServerMixin,pl:mixin:APP:roadrunner.mixins.json:world.light_batching.MinecraftServerMixin,pl:mixin:APP:byg.mixins.json:server.MixinMinecraftServer,pl:mixin:A} at net.minecraft.server.MinecraftServer$$Lambda$30515/32948564.run(Unknown Source) [?:?] {} at java.lang.Thread.run(Thread.java:745) [?:1.8.0_51] {}

A detailed walkthrough of the error, its code path and all known details is as follows: