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for whatever reason Minecraft keeps crashing after about 10 or so seconds in my modded world, but only in the end.

List of mods being used(All are 1.12.2):

AbyssalCraft

Ancient Warfare

ClaySoldiers

CodeChickenLib

DefiledLands

Erebus

Furniture

GottschCore

Industrialcraft

Ironchest

Jei

Mmsr

Mutatedmobs

Netherex

NotEnoughItems

Optifine

Pams+Harvestcrat

Primitive Mobs

RoguelikeDungeons

SanLib

Tam Modized

Torohealth

VoicCraft

Xaeros Minimap

______________________

Crash Report:

---- Minecraft Crash Report -------- Minecraft Crash Report ----
WARNING: coremods are present:Contact their authors BEFORE contacting forge
// Why is it breaking
Time: 4/27/18 7:16 PMDescription: Exception ticking world
java.lang.IllegalArgumentException at net.minecraft.util.WeightedRandom.func_76273_a(SourceFile:18) at net.minecraft.util.WeightedRandom.func_76271_a(SourceFile:37) at net.minecraft.world.WorldServer.func_175734_a(WorldServer.java:246) at net.minecraft.world.WorldEntitySpawner.func_77192_a(WorldEntitySpawner.java:194) at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:203) at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:754) at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:666) at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:252) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:524) at java.lang.Thread.run(Thread.java:745)

A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
-- Head --Thread: Server threadStacktrace: at net.minecraft.util.WeightedRandom.func_76273_a(SourceFile:18) at net.minecraft.util.WeightedRandom.func_76271_a(SourceFile:37) at net.minecraft.world.WorldServer.func_175734_a(WorldServer.java:246) at net.minecraft.world.WorldEntitySpawner.func_77192_a(WorldEntitySpawner.java:194) at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:203)
-- Affected level --Details: Level name: modworld All players: 1 total; [EntityPlayerMP['HoHoJoe'/321, l='modworld', x=41.42, y=86.00, z=-0.13]] Chunk stats: ServerChunkCache: 3971 Drop: 0 Level seed: -5528237011187128896 Level generator: ID 00 - default, ver 1. Features enabled: false Level generator options: Level spawn location: World: (0,0,0), Chunk: (at 0,0,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511) Level time: 0 game time, 0 day time Level dimension: 0 Level storage version: 0x00000 - Unknown? Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false) Level game mode: ~~ERROR~~ NullPointerException: nullStacktrace: at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:754) at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:666) at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:252) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:524) at java.lang.Thread.run(Thread.java:745)
-- System Details --Details: Minecraft Version: 1.12.2 Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_25, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 7110277736 bytes (6780 MB) / 8791261184 bytes (8384 MB) up to 10737418240 bytes (10240 MB) JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx10G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94 FML: MCP 9.42 Powered by Forge 14.23.2.2611 Optifine OptiFine_1.12.2_HD_U_C9 32 mods loaded, 32 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 | |:--------- |:------------------------ |:----------------- |:--------------------------------------------- |:---------------------------------------- | | UCHIJAAAA | minecraft | 1.12.2 | minecraft.jar | None | | UCHIJAAAA | mcp | 9.42 | minecraft.jar | None | | UCHIJAAAA | FML | 8.0.99.99 | forge-1.12.2-14.23.2.2611.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 | | UCHIJAAAA | forge | 14.23.2.2611 | forge-1.12.2-14.23.2.2611.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 | | UCHIJAAAA | mercurius_updater | 1.0 | MercuriusUpdater-1.12.2.jar | None | | UCHIJAAAA | jei | 4.8.5.147 | jei_1.12.2-4.8.5.147.jar | None | | UCHIJAAAA | abyssalcraft | 1.9.4.4 | AbyssalCraft-1.12.2-1.9.4.4.jar | 220f10d3a93b3ff5fbaa7434cc629d863d6751b9 | | UCHIJAAAA | codechickenlib | 3.1.6.339 | CodeChickenLib-1.12.2-3.1.6.339-universal.jar | f1850c39b2516232a2108a7bd84d1cb5df93b261 | | UCHIJAAAA | ancientwarfare | @[email protected] | ancientwarfare-1.12.2-2.5.119.jar | None | | UCHIJAAAA | ancientwarfareautomation | @[email protected] | ancientwarfare-1.12.2-2.5.119.jar | None | | UCHIJAAAA | ancientwarfarenpc | @[email protected] | ancientwarfare-1.12.2-2.5.119.jar | None | | UCHIJAAAA | ancientwarfarestructure | @[email protected] | ancientwarfare-1.12.2-2.5.119.jar | None | | UCHIJAAAA | sanlib | 1.3.1 | SanLib-1.12-1.3.1.jar | None | | UCHIJAAAA | claysoldiers | 3.0.0-alpha.9.1 | ClaySoldiersMod-1.12.2-3.0.0-alpha.9.1.jar | None | | UCHIJAAAA | defiledlands | 1.2.0 | defiledlands-1.12.2-1.2.0.jar | None | | UCHIJAAAA | erebus | 1.0.22 | Erebus-1.0.22.jar | None | | UCHIJAAAA | cfm | 4.1.5 | furniture-4.1.5-1.12.2.jar | None | | UCHIJAAAA | gottschcore | 1.3.0 | GottschCore-mc1.12.2-f14.23.1.2555-v1.3.0.jar | None | | UCHIJAAAA | ic2 | 2.8.16-ex112 | industrialcraft-2-2.8.16-ex112.jar | de041f9f6187debbc77034a344134053277aa3b0 | | UCHIJAAAA | ironchest | 1.12.2-7.0.40.824 | ironchest-1.12.2-7.0.40.824.jar | None | | UCHIJAAAA | muchmorespiders | 1.1 | mmsr-1.0.1-1.12.2.jar | None | | UCHIJAAAA | mmm | 1.0.8 | mutatedmobs-1.0.8.jar | None | | UCHIJAAAA | nex | 2.1.14.15 | NetherEx-1.12-2.1.14.15.jar | None | | UCHIJAAAA | nei | 2.4.1 | NotEnoughItems-1.12.2-2.4.1.233-universal.jar | f1850c39b2516232a2108a7bd84d1cb5df93b261 | | UCHIJAAAA | harvestcraft | 1.12.2r | Pam's+HarvestCraft+1.12.2r.jar | None | | UCHIJAAAA | primitivemobs | 1.1.6 | primitivemobs-1.1.6_beta.jar | None | | UCHIJAAAA | roguelike | 1.8.0 | RoguelikeDungeons-1.12.2-1.8.0.jar | None | | UCHIJAAAA | sanplayermodel | 1.0.3 | SanLib-1.12-1.3.1.jar | None | | UCHIJAAAA | tammodized | 0.15.5 | TamModized-1.12.1-0.15.5.jar | None | | UCHIJAAAA | torohealthmod | 1.12.2-11 | torohealth-1.12.2-11.jar | None | | UCHIJAAAA | voidcraft | 0.26.10 | VoidCraft-1.12-0.26.10.jar | None | | UCHIJAAAA | xaerominimap | 1.14.8 | Xaeros_Minimap_1.14.8_Forge_1.12.jar | None |
Loaded coremods (and transformers): GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread. Profiler Position: N/A (disabled) Player Count: 1 / 8; [EntityPlayerMP['HoHoJoe'/321, l='modworld', x=41.42, y=86.00, z=-0.13]] Type: Integrated Server (map_client.txt) Is Modded: Definitely; Client brand changed to 'fml,forge' OptiFine Version: OptiFine_1.12.2_HD_U_C9 Render Distance Chunks: 31 Mipmaps: 4 Anisotropic Filtering: 1 Antialiasing: 0 Multitexture: false Shaders: null OpenGlVersion: 4.6.0 NVIDIA 390.65 OpenGlRenderer: GeForce GTX 1060 3GB/PCIe/SSE2 OpenGlVendor: NVIDIA Corporation CpuCount: 4