does anyone know why my minecraft would crash every time I open this world but it works for every other world

[gamechanger]

---- Minecraft Crash Report ----

WARNING: coremods are present:
MekanismCoremod (Mekanism-1.12.2-9.8.3.390.jar)
SSLoadingPlugin (SereneSeasons-1.12.2-1.2.16-universal.jar)
IvToolkit (IvToolkit-1.3.3-1.12.jar)
Contact their authors BEFORE contacting forge

// I'm sorry, Dave.

Time: 1/29/21 5:33 PM
Description: Exception in server tick loop

java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)
at java.util.HashMap$ValueIterator.next(HashMap.java:1458)
at net.minecraft.world.World.func_147448_a(World.java:1949)
at net.minecraft.world.chunk.Chunk.func_76631_c(Chunk.java:856)
at net.minecraftforge.common.chunkio.ChunkIOProvider.syncCallback(ChunkIOProvider.java:109)
at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:94)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:118)
at net.minecraft.world.gen.ChunkProviderServer.func_186028_c(ChunkProviderServer.java:89)
at net.minecraft.world.gen.ChunkProviderServer.func_186025_d(ChunkProviderServer.java:135)
at net.minecraft.world.World.func_72964_e(World.java:310)
at net.minecraft.world.World.func_175726_f(World.java:305)
at net.minecraft.world.World.func_180495_p(World.java:911)
at weather2.weathersystem.storm.TornadoHelper.tick(TornadoHelper.java:320)
at weather2.weathersystem.storm.StormObject.tick(StormObject.java:570)
at weather2.weathersystem.WeatherManagerBase.tick(WeatherManagerBase.java:138)
at weather2.weathersystem.WeatherManagerServer.tick(WeatherManagerServer.java:52)
at weather2.ServerTickHandler.onTickInGame(ServerTickHandler.java:92)
at weather2.EventHandlerFML.tickServer(EventHandlerFML.java:49)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_454_EventHandlerFML_tickServer_ServerTickEvent.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182)
at net.minecraftforge.fml.common.FMLCommonHandler.onPreServerTick(FMLCommonHandler.java:279)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:657)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:252)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
at java.lang.Thread.run(Thread.java:745)


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

-- System Details --
Details:
Minecraft Version: 1.12.2
Operating System: Mac OS X (x86_64) version 10.16
Java Version: 1.8.0_74, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 513798832 bytes (489 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
JVM Flags: 7 total; -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 106
FML: MCP 9.42 Powered by Forge 14.23.5.2854 Optifine OptiFine_1.12.2_HD_U_E3 51 mods loaded, 51 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

| State | ID | Version | Source | Signature |
|:------ |:------------------- |:---------------- |:-------------------------------------------------- |:---------------------------------------- |
| LCHIJA | minecraft | 1.12.2 | minecraft.jar | None |
| LCHIJA | mcp | 9.42 | minecraft.jar | None |
| LCHIJA | FML | 8.0.99.99 | forge-1.12.2-14.23.5.2854.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 |
| LCHIJA | forge | 14.23.5.2854 | forge-1.12.2-14.23.5.2854.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 |
| LCHIJA | ivtoolkit | 1.3.3-1.12 | minecraft.jar | None |
| LCHIJA | actuallyadditions | 1.12.2-r151 | ActuallyAdditions-1.12.2-r151-2.jar | None |
| LCHIJA | wumpleutil | 2.12.9 | wumpleutil-1.12.2-2.12.9.jar | None |
| LCHIJA | foodfunk | 4.9.6 | foodfunk-1.12.2-4.9.6.jar | None |
| LCHIJA | biomesoplenty | 7.0.1.2444 | BiomesOPlenty-1.12.2-7.0.1.2444-universal.jar | None |
| LCHIJA | redstoneflux | 2.1.1 | RedstoneFlux-1.12-2.1.1.1-universal.jar | None |
| LCHIJA | cofhcore | 4.6.6 | CoFHCore-1.12.2-4.6.6.1-universal.jar | None |
| LCHIJA | craftstudioapi | 1.0.0 | CraftStudioAPI-universal-1.0.1.95-mc1.12-alpha.jar | None |
| LCHIJA | animania | 1.6.2 | animania-1.12.2-1.6.2.jar | None |
| LCHIJA | aquaculture | 1.6.8 | Aquaculture-1.12.2-1.6.8.jar | None |
| LCHIJA | betteranimalsplus | 7.0.0 | betteranimalsplus-1.12.2-7.0.0.jar | None |
| LCHIJA | buildcraftlib | 7.99.24.6 | buildcraft-all-7.99.24.6.jar | None |
| LCHIJA | buildcraftcore | 7.99.24.6 | buildcraft-all-7.99.24.6.jar | None |
| LCHIJA | buildcraftbuilders | 7.99.24.6 | buildcraft-all-7.99.24.6.jar | None |
| LCHIJA | buildcrafttransport | 7.99.24.6 | buildcraft-all-7.99.24.6.jar | None |
| LCHIJA | buildcraftsilicon | 7.99.24.6 | buildcraft-all-7.99.24.6.jar | None |
| LCHIJA | buildcraftcompat | 7.99.24.6 | buildcraft-all-7.99.24.6.jar | None |
| LCHIJA | buildcraftenergy | 7.99.24.6 | buildcraft-all-7.99.24.6.jar | None |
| LCHIJA | buildcraftfactory | 7.99.24.6 | buildcraft-all-7.99.24.6.jar | None |
| LCHIJA | buildcraftrobotics | 7.99.24.6 | buildcraft-all-7.99.24.6.jar | None |
| LCHIJA | chickens | 6.1.0 | chickens-6.1.0.jar | None |
| LCHIJA | cofhworld | 1.4.0 | CoFHWorld-1.12.2-1.4.0.1-universal.jar | None |
| LCHIJA | composter | 1.9.2 | composter-1.12.2-1.9.2.jar | 1e57901a90acd4a3a54295b6decff5397be51a31 |
| LCHIJA | extendedrenderer | v1.0 | coroutil-1.12.1-1.2.37.jar | None |
| LCHIJA | coroutil | 1.12.1-1.2.37 | coroutil-1.12.1-1.2.37.jar | None |
| LCHIJA | configmod | v1.0 | coroutil-1.12.1-1.2.37.jar | None |
| LCHIJA | reccomplex | 1.4.8.1 | RecurrentComplex-1.4.8.1.jar | None |
| LCHIJA | dynamictrees | 1.12.2-0.9.8 | DynamicTrees-1.12.2-0.9.8.jar | None |
| LCHIJA | eternalwinter | 1.0.2 | eternalwinter-1.0.2.jar | 7904c4e13947c8a616c5f39b26bdeba796500722 |
| LCHIJA | ic2 | 2.8.221-ex112 | industrialcraft-2-2.8.221-ex112.jar | de041f9f6187debbc77034a344134053277aa3b0 |
| LCHIJA | jei | 4.16.1.302 | jei_1.12.2-4.16.1.302.jar | None |
| LCHIJA | mca | 6.1.0 | MCA-1.12.2-6.1.0-universal.jar | None |
| LCHIJA | mekanism | 1.12.2-9.8.3.390 | Mekanism-1.12.2-9.8.3.390.jar | None |
| LCHIJA | mekanismtools | 1.12.2-9.8.3.390 | MekanismTools-1.12.2-9.8.3.390.jar | None |
| LCHIJA | netherite | 1.1.0 | netherite-1.1.0.jar | None |
| LCHIJA | oreexcavation | 1.4.150 | OreExcavation-1.4.150.jar | None |
| LCHIJA | refinedstorage | 1.6.15 | refinedstorage-1.6.15.jar | 57893d5b90a7336e8c63fe1c1e1ce472c3d59578 |
| LCHIJA | roguelike | 1.8.0 | RoguelikeDungeons-1.12.2-1.8.0.jar | None |
| LCHIJA | sereneseasons | 1.2.16 | SereneSeasons-1.12.2-1.2.16-universal.jar | None |
| LCHIJA | thermalfoundation | 2.6.7 | ThermalFoundation-1.12.2-2.6.7.1-universal.jar | None |
| LCHIJA | thermalinnovation | 0.3.6 | ThermalInnovation-1.12.2-0.3.6.1-universal.jar | None |
| LCHIJA | space | Beta 1.5.1 | TheSpaceAgeMod-Beta-1.5.1.jar | None |
| LCHIJA | toughasnails | 3.1.0.139 | ToughAsNails-1.12.2-3.1.0.139-universal.jar | None |
| LCHIJA | undergroundbiomes | 1.3.7 | UndergroundBiomesConstructs-1.12-1.3.7.jar | None |
| LCHIJA | vulcanite | 1.5.2 | vulcanite-1.5.2-mc1.12.x.jar | None |
| LCHIJA | wearablebackpacks | 3.1.3 | WearableBackpacks-1.12.2-3.1.3.jar | None |
| LCHIJA | weather2 | 1.12.1-2.6.12 | weather2-1.12.1-2.6.12.jar | None |

Loaded coremods (and transformers):
MekanismCoremod (Mekanism-1.12.2-9.8.3.390.jar)
mekanism.coremod.KeybindingMigrationHelper
SSLoadingPlugin (SereneSeasons-1.12.2-1.2.16-universal.jar)
sereneseasons.asm.transformer.EntityRendererTransformer
sereneseasons.asm.transformer.WorldTransformer
IvToolkit (IvToolkit-1.3.3-1.12.jar)

GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
Profiler Position: N/A (disabled)
Player Count: 0 / 8; []
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'