Sorry if this is something that is solved but i cant find anything.
So when I am getting hurt or about to die the game crashes.
 

---- Minecraft Crash Report ----

WARNING: coremods are present:
  Plugin (NotEnoughIDs-1.5.4.4.jar)
  llibrary (llibrary-core-1.0.11-1.12.2.jar)
  EnderCorePlugin (EnderCore-1.12.2-0.5.76-core.jar)
  LucraftCoreCoreMod (LucraftCore-1.12.2-2.4.16.jar)
  ForgelinPlugin (Forgelin-1.8.4.jar)
  MicdoodlePlugin (MicdoodleCore-1.12.2-4.0.2.280.jar)
  JustEnoughIDs Extension Plugin (JustEnoughIDs-1.0.3-55.jar)
  OpenModsCorePlugin (OpenModsLib-1.12.2-0.12.2.jar)
  pymtech (PymTech-1.12.2-1.0.2.jar)
  SteveKunGLibPlugin (SteveKunG's-Lib-1.12.2-1.1.10.jar)
  ObfuscatePlugin (obfuscate-0.4.2-1.12.2.jar)
  iceandfire (iceandfire-1.9.1-1.12.2.jar)
Contact their authors BEFORE contacting forge

// Uh... Did I do that?

Time: 9/18/21 6:11 PM
Description: Ticking entity

java.lang.NoClassDefFoundError: c4/conarm/lib/capabilities/ArmorAbilityHandler
    at landmaster.plustic.traits.DeathSaveTrait.timing(DeathSaveTrait.java:70)
    at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_1306_DeathSaveTrait_timing_LivingHurtEvent.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.common.ForgeHooks.onLivingHurt(ForgeHooks.java:604)
    at net.minecraft.entity.player.EntityPlayer.func_70665_d(EntityPlayer.java:1120)
    at net.minecraft.entity.EntityLivingBase.func_70097_a(EntityLivingBase.java:918)
    at net.minecraft.entity.player.EntityPlayer.func_70097_a(EntityPlayer.java:1038)
    at net.minecraft.entity.player.EntityPlayerMP.func_70097_a(EntityPlayerMP.java:645)
    at micdoodle8.mods.galacticraft.core.entities.player.GCEntityPlayerMP.func_70097_a(GCEntityPlayerMP.java:68)
    at com.github.alexthe666.iceandfire.entity.EntityMyrmexSoldier.func_70636_d(EntityMyrmexSoldier.java:54)
    at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:2179)
    at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:295)
    at com.github.alexthe666.iceandfire.entity.EntityMyrmexBase.func_70071_h_(EntityMyrmexBase.java:240)
    at net.minecraft.world.World.func_72866_a(World.java:1996)
    at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:832)
    at net.minecraft.world.World.func_72870_g(World.java:1958)
    at net.minecraft.world.World.func_72939_s(World.java:1762)
    at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:613)
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:767)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
    at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:185)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: c4.conarm.lib.capabilities.ArmorAbilityHandler
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 24 more
Caused by: java.lang.NullPointerException

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

-- Head --
Thread: Server thread
Stacktrace:
    at landmaster.plustic.traits.DeathSaveTrait.timing(DeathSaveTrait.java:70)
    at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_1306_DeathSaveTrait_timing_LivingHurtEvent.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.common.ForgeHooks.onLivingHurt(ForgeHooks.java:604)
    at net.minecraft.entity.player.EntityPlayer.func_70665_d(EntityPlayer.java:1120)
    at net.minecraft.entity.EntityLivingBase.func_70097_a(EntityLivingBase.java:918)
    at net.minecraft.entity.player.EntityPlayer.func_70097_a(EntityPlayer.java:1038)
    at net.minecraft.entity.player.EntityPlayerMP.func_70097_a(EntityPlayerMP.java:645)
    at micdoodle8.mods.galacticraft.core.entities.player.GCEntityPlayerMP.func_70097_a(GCEntityPlayerMP.java:68)
    at com.github.alexthe666.iceandfire.entity.EntityMyrmexSoldier.func_70636_d(EntityMyrmexSoldier.java:54)
    at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:2179)
    at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:295)
    at com.github.alexthe666.iceandfire.entity.EntityMyrmexBase.func_70071_h_(EntityMyrmexBase.java:240)
    at net.minecraft.world.World.func_72866_a(World.java:1996)
    at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:832)
    at net.minecraft.world.World.func_72870_g(World.java:1958)

-- Entity being ticked --
Details:
    Entity Type: iceandfire:myrmex_soldier (com.github.alexthe666.iceandfire.entity.EntityMyrmexSoldier)
    Entity ID: 15
    Entity Name: Myrmex Soldier
    Entity's Exact location: -183.34, 61.00, -11.63
    Entity's Block location: World: (-184,61,-12), Chunk: (at 8,3,4 in -12,-1; contains blocks -192,0,-16 to -177,255,-1), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
    Entity's Momentum: -0.04, -0.08, -0.14
    Entity's Passengers: []
    Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
    at net.minecraft.world.World.func_72939_s(World.java:1762)
    at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:613)

-- Affected level --
Details:
    Level name: New World
    All players: 1 total; [GCEntityPlayerMP['Altutium'/390, l='New World', x=-183.77, y=61.00, z=-12.57]]
    Chunk stats: ServerChunkCache: 769 Drop: 0
    Level seed: 2105410062015924141
    Level generator: ID 00 - default, ver 1. Features enabled: true
    Level generator options: 
    Level spawn location: World: (8,64,8), Chunk: (at 8,4,8 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: 10758 game time, 10758 day time
    Level dimension: 0
    Level storage version: 0x04ABD - Anvil
    Level weather: Rain time: 5018 (now: false), thunder time: 119120 (now: false)
    Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:767)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
    at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:185)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
    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_51, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 2523489512 bytes (2406 MB) / 5603590144 bytes (5344 MB) up to 6442450944 bytes (6144 MB)
    JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx6G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
    IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
    FML: MCP 9.42 Powered by Forge 14.23.5.2855 95 mods loaded, 95 mods active
    States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
 

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