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---- Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 11/1/15 7:29 PM
Description: Ticking entity

java.lang.NoClassDefFoundError: codechicken/lib/math/MathHelper
at Reika.ChromatiCraft.Entity.EntityChromaEnderCrystal.func_70071_h_(EntityChromaEnderCrystal.java:39)
at net.minecraft.world.World.func_72866_a(World.java:2070)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:648)
at net.minecraft.world.World.func_72870_g(World.java:2034)
at net.minecraft.world.World.func_72939_s(World.java:1887)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:489)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:636)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)
Caused by: java.lang.ClassNotFoundException: codechicken.lib.math.MathHelper
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)
... 11 more
Caused by: java.lang.NullPointerException

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

-- Head --
Stacktrace:
at Reika.ChromatiCraft.Entity.EntityChromaEnderCrystal.func_70071_h_(EntityChromaEnderCrystal.java:39)
at net.minecraft.world.World.func_72866_a(World.java:2070)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:648)
at net.minecraft.world.World.func_72870_g(World.java:2034)

-- Entity being ticked --
Details:
Entity Type: EnderCrystal (Reika.ChromatiCraft.Entity.EntityChromaEnderCrystal)
Entity ID: 807
Entity Name: Ender Crystal
Entity's Exact location: 1.00, 63.00, 252.00
Entity's Block location: World: (1,63,252), Chunk: (at 1,3,12 in 0,15; contains blocks 0,0,240 to 15,255,255), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Entity's Momentum: 0.00, 0.00, 0.00
Stacktrace:
at net.minecraft.world.World.func_72939_s(World.java:1887)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:489)

-- Affected level --
Details:
Level name: Vertoak Map V12
All players: 0 total; []
Chunk stats: ServerChunkCache: 525 Drop: 29
Level seed: -6784736191283369982
Level generator: ID 00 - default, ver 1. Features enabled: true
Level generator options:
Level spawn location: World: (14,72,184), Chunk: (at 14,4,8 in 0,11; contains blocks 0,0,176 to 15,255,191), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 35407233 game time, 460391 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 85627 (now: false), thunder time: 74781 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: true
Stacktrace:
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:636)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)

-- System Details --
Details:
Minecraft Version: 1.7.10
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: 208660560 bytes (198 MB) / 1060372480 bytes (1011 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 96
FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1481 41 mods loaded, 41 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAAAA mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
UCHIJAAAA FML{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.4.1481-1.7.10.jar)
UCHIJAAAA Forge{10.13.4.1481} [Minecraft Forge] (forge-1.7.10-10.13.4.1481-1.7.10.jar)
UCHIJAAAA TooManyItems{1.7.10} [TooManyItems] (minecraft.jar)
UCHIJAAAA <CoFH ASM>{000} [CoFH ASM] (minecraft.jar)
UCHIJAAAA <DragonAPI ASM>{0} [DragonAPI ASM Data Initialization] (minecraft.jar)
UCHIJAAAA sapmanpack{2.5.1} [SanAndreasPs Manager Pack CORE edition] (SAPManPack-1.7.10-2.5.1.jar)
UCHIJAAAA securitycraft{v1.7.4.1} [SecurityCraft] ([1.7.10] SecurityCraft v1.7.4.1.jar)
UCHIJAAAA weaponsplus{v1.1 Pre-Release} [Weapons+ Mod] ([1.7.2] WeaponsPlus v1.5.1.jar)
UCHIJAAAA BiblioCraft{1.10.5} [BiblioCraft] (BiblioCraft[v1.10.6][MC1.7.10].jar)
UCHIJAAAA CoFHCore{1.7.10R3.0.3} [CoFH Core] (CoFHCore-[1.7.10]3.0.3-303.jar)
UCHIJAAAA BigReactors{0.4.3A} [Big Reactors] (BigReactors-0.4.3A.jar)
UCHIJAAAA BuildCraft|Core{7.0.23} [BuildCraft] (buildcraft-7.0.23.jar)
UCHIJAAAA BuildCraft|Energy{7.0.23} [BC Energy] (buildcraft-7.0.23.jar)
UCHIJAAAA BuildCraft|Factory{7.0.23} [BC Factory] (buildcraft-7.0.23.jar)
UCHIJAAAA BuildCraft|Silicon{7.0.23} [BC Silicon] (buildcraft-7.0.23.jar)
UCHIJAAAA BuildCraft|Transport{7.0.23} [BC Transport] (buildcraft-7.0.23.jar)
UCHIJAAAA BuildCraft|Builders{7.0.23} [BC Builders] (buildcraft-7.0.23.jar)
UCHIJAAAA BuildCraft|Robotics{7.0.23} [BC Robotics] (buildcraft-7.0.23.jar)
UCHIJAAAA CarpentersBlocks{3.3.7} [Carpenter's Blocks] (Carpenter's Blocks v3.3.7 - MC 1.7.10.jar)
UCHIJAAAA DragonAPI{1.0} [DragonAPI] (DragonAPI 1.7.10 V8g.jar)
UCHIJAAAA ChromatiCraft{1.0} [ChromatiCraft] (ChromatiCraft 1.7.10 V8g.jar)
UCHIJAAAA claysoldiers{2.0.0-beta.2} [Clay Soldiers Mod] (ClaySoldiersMod-1.7.10-2.0.0-beta.2.jar)
UCHIJAAAA EnderIO{1.7.10-2.2.8.381} [Ender IO] (EnderIO-1.7.10-2.2.8.381.jar)
UCHIJAAAA flenixcities{0.11.0} [FlenixCities] (FlenixCitiesCore_[1.7.10]-0.11.0-b67.jar)
UCHIJAAAA fc_food{0.5} [FlenixCities Food] (FlenixCitiesFood_[1.7.10]-0.5.jar)
UCHIJAAAA fc_research{0.4.0} [FlenixCities Research] (FlenixCitiesResearch_[1.7.10]-0.4.jar)
UCHIJAAAA ForgeEssentials{1.4.2} [Forge Essentials] (forgeessentials-1.7.10-1.4.2.892-server.jar)
UCHIJAAAA iChunUtil{4.2.2} [iChunUtil] (iChunUtil-4.2.2.jar)
UCHIJAAAA GraviGun{4.0.0-beta} [GraviGun] (GravityGun-4.0.0-beta.jar)
UCHIJAAAA VoltzEngine{0.4.0.266} [Voltz Engine] (VoltzEngine-1.7.10-0.4.0b266-dev.jar)
UCHIJAAAA icbm{2.4.0.253} [ICBM] (ICBM-1.7.10-2.4.0b253-dev.jar)
UCHIJAAAA cfm{3.4.8} [§9MrCrayfish's Furniture Mod] (MrCrayfishFurnitureModv3.4.8(1.7.10).jar)
UCHIJAAAA PortalGun{4.0.0-beta-5} [PortalGun] (PortalGun-4.0.0-beta-5.jar)
UCHIJAAAA Railcraft{9.7.0.0} [Railcraft] (Railcraft_1.7.10-9.7.0.0.jar)
UCHIJAAAA RotaryCraft{1.0} [RotaryCraft] (RotaryCraft 1.7.10 V8g.jar)
UCHIJAAAA ReactorCraft{1.0} [ReactorCraft] (ReactorCraft 1.7.10 V8f.jar)
UCHIJAAAA ReiMinimap{1.7.10} [Rei's Minimap] (Reis-Minimap-Mod-1.7.10.jar)
UCHIJAAAA rivalrebels{1.7.10J} [Rival Rebels] (rivalrebels-1.7.10J.jar)
UCHIJAAAA RopesPlus{1.6.4} [Ropes+] (RopePlus-1.7.10.jar)
UCHIJAAAA worldedit{6.0-beta-01} [WorldEdit] (worldedit-forge-mc1.7.10-6.0-beta-01.jar)
GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
CoFHCore: -[1.7.10]3.0.3-303
ForgeEssentials: Running ForgeEssentials 1.4.2.892 (0b3f6be). Modules loaded: Afterlife, Backups, Chat, Commands, Economy, Multiworld, Permissions, PlayerLogger, Protection, Remote, Scripting, SignTools, Teleport, Tickets, perftools
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Player Count: 0 / 8; []
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'

Seems as though chromatiCraft requires CodeChickenCore.