crashes dedicated Forge server (1.8) b1295 while looking for missing class : caused by attacking fire mage

---- Minecraft Crash Report ----
// Shall we play a game?

Time: 2/3/15 11:19 AM
Description: Ticking entity

java.lang.NoClassDefFoundError: net/minecraft/client/particle/EntityFX
	at net.essence.entity.mob.vanilla.EntityFireMage.func_82196_d(EntityFireMage.java:55)
	at net.minecraft.entity.ai.EntityAIArrowAttack.func_75246_d(SourceFile:89)
	at net.minecraft.entity.ai.EntityAITasks.func_75774_a(SourceFile:102)
	at net.minecraft.entity.EntityLiving.func_70626_be(EntityLiving.java:568)
	at net.minecraft.entity.EntityLivingBase.func_70636_d(EntityLivingBase.java:1788)
	at net.minecraft.entity.EntityLiving.func_70636_d(EntityLiving.java:386)
	at net.minecraft.entity.monster.EntityMob.func_70636_d(SourceFile:39)
	at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:1627)
	at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:229)
	at net.minecraft.entity.monster.EntityMob.func_70071_h_(SourceFile:44)
	at net.minecraft.world.World.func_72866_a(World.java:1865)
	at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:732)
	at net.minecraft.world.World.func_72870_g(World.java:1835)
	at net.minecraft.world.World.func_72939_s(World.java:1664)
	at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:571)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:703)
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:364)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:598)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:478)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.particle.EntityFX
	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)
	... 20 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 net.essence.entity.mob.vanilla.EntityFireMage.func_82196_d(EntityFireMage.java:55)
	at net.minecraft.entity.ai.EntityAIArrowAttack.func_75246_d(SourceFile:89)
	at net.minecraft.entity.ai.EntityAITasks.func_75774_a(SourceFile:102)
	at net.minecraft.entity.EntityLiving.func_70626_be(EntityLiving.java:568)
	at net.minecraft.entity.EntityLivingBase.func_70636_d(EntityLivingBase.java:1788)
	at net.minecraft.entity.EntityLiving.func_70636_d(EntityLiving.java:386)
	at net.minecraft.entity.monster.EntityMob.func_70636_d(SourceFile:39)
	at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:1627)
	at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:229)
	at net.minecraft.entity.monster.EntityMob.func_70071_h_(SourceFile:44)
	at net.minecraft.world.World.func_72866_a(World.java:1865)
	at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:732)
	at net.minecraft.world.World.func_72870_g(World.java:1835)

-- Entity being ticked --
Details:
	Entity Type: fireMage (net.essence.entity.mob.vanilla.EntityFireMage)
	Entity ID: 8889
	Entity Name: Fire Mage
	Entity's Exact location: 892.50, 63.00, -556.50
	Entity's Block location: 892.00,63.00,-557.00 - World: (892,63,-557), Chunk: (at 12,3,3 in 55,-35; contains blocks 880,0,-560 to 895,255,-545), Region: (1,-2; contains chunks 32,-64 to 63,-33, blocks 512,0,-1024 to 1023,255,-513)
	Entity's Momentum: 0.00, -0.08, 0.00
	Entity's Rider: ~~ERROR~~ NullPointerException: null
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at net.minecraft.world.World.func_72939_s(World.java:1664)
	at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:571)

-- Affected level --
Details:
	Level name: world
	All players: 1 total; [EntityPlayerMP['Kreezxil'/1050, l='world', x=888.68, y=64.00, z=-529.73]]
	Chunk stats: ServerChunkCache: 751 Drop: 0
	Level seed: 5576176651948319114
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options:
	Level spawn location: 64.00,64.00,256.00 - World: (64,64,256), Chunk: (at 0,4,0 in 4,16; contains blocks 64,0,256 to 79,255,271), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 106366734 game time, 106476967 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 3775 (now: false), thunder time: 44395 (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:703)
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:364)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:598)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:478)
	at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
	Minecraft Version: 1.8
	Operating System: Linux (amd64) version 2.6.32-042stab093.4
	Java Version: 1.8.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 122944776 bytes (117 MB) / 1627389952 bytes (1552 MB) up to 3817865216 bytes (3641 MB)
	JVM Flags: 1 total; -Xmx4G
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	FML: MCP v9.10 FML v8.0.20.1295 Minecraft Forge 11.14.0.1295 60 mods loaded, 60 mods active
	mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	FML{8.0.20.1295} [Forge Mod Loader] (forge.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	Forge{11.14.0.1295} [Minecraft Forge] (forge.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	Aroma1997Core{1.0.3.3} [Aroma1997Core] (Aroma1997Core-1.8-1.0.3.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	CodeChickenCore{1.0.5.34} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	NotEnoughItems{1.0.5.87} [Not Enough Items] (NotEnoughItems-1.8-1.0.5.87-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	dynamicswordskills{1.8-2.0} [Dynamic Sword Skills] (1.8-dynamicswordskills-2.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	Aroma1997CoreHelper{1.0.3.3} [Aroma1997Core|Helper] (Aroma1997Core-1.8-1.0.3.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	AutoSapling{1.0} [AutoSapling] (AutoSap-MC1.8-1.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	avoidExplodingCreepers{1.0} [Avoid Exploding Creepers] (AvoidExplodingCreepers-1.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	Backpack{2.0.1} [Backpack] (backpack-2.0.1-1.8.x.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	BBG{2.0.0} [BetterBedrockGen] (BBG 1.8-2.0.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	BetterChests{1.1.2.0} [BetterChests] (BetterChests-1.8-1.1.2.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	brewingPlus{0.0.5} [brewingPlus] (brewingPlus-1.8-0.0.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	ChickenShed{1.1.4} [Chicken Shed] (ChickenShed-1.8-1.2.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	k4lib{1.8-1.0.4} [K4Lib] (k4lib-1.8-1.0.4-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	colorchat{1.8-1.0.3} [ColorChat] (colorchat-1.8-1.0.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	convenientrecipes{1.8-1.5} [Convenient Recipes] (ConvenientRecipes-1.8-1.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	craft++{1.0} [Craft++] (Craft++-1.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	lootablebodies{1.3.2} [DrCyano's Lootable Bodies] (CyanosLootableBodies-1.3.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	wonderfulwands{1.5.5} [Cyano's Wonderful Wands] (CyanosWonderfulWands-1.5.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	Dynmap{2.1-29} [Dynmap] (Dynmap-2.1-forge-1.8.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	essence{1.0.0} [Essence of the Gods] (Essence of the Gods-1.0.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	exchangeorb{v1.5} [Exchange Orb] (exchangeorb-1.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	extraachievements{2.2.0} [Extra Achievements] (Extra-Achievements-2.2.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	FastLeaveDecay{1.0} [Fast Leave Decay] (FastLeaveDecay-1.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	fireplacecore{2.0.1.0} [Fireplace Core] (Fireplace-Core-2.0.1.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	clayspawn{2.0.0.2} [Fire's Clay Spawn] (Fires-Clay-Spawn-2.0.0.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	bonus{.1} [Mystify's Bonus stuff] (Galactic Colored Blocks-1.8-1.01.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	galactic{1.1} [Galactic Colored Blocks] (Galactic Colored Blocks-1.8-1.01.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	glass_shards{1.0-beta} [Glass Shards] (glass_shards_mc1.8-1.0-beta.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	hopperducts{1.4.5} [Hopper Ducts] (hopperducts-mc1.8-1.4.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	icecreamcreepers{1.0.9d} [Icecream Sandwich Creeper Mod] (IceCreamSandwichCreeperModv1.0.9f.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	InfernalMobs{1.6.0} [Infernal Mobs] (InfernalMobs-1.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	IronChest{6.0.99.749} [Iron Chest] (ironchest-1.8-6.0.99.749-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	wuppy29_jellycubes{1.13.2} [Jelly Cubes] (Jelly Cubes 1.8.0-1.13.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	lucky{5.2.0} [Lucky Block] (LuckyBlock_1-8-1_v5-2-0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	LunatriusCore{1.1.2.21} [LunatriusCore] (LunatriusCore-1.8-1.1.2.21-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	magicclover{0.6} [Magic Clover] (magicclover-0.6.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	sgs_metals{2.1} [SGS Metals 1.8-2.1] (Metals-1.8-2.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	mineralogy{2.3.0} [Mineralogy] (mineralogy-2.3.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	morematerials{1.0.20150201.0} [More Materials] (morematerials-1.0.20150201.0-MC1.8-20150125.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	Morpheus{1.82.0.35} [Morpheus] (Morpheus-1.8-2.0.35.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	cfm{3.4.7} [?9MrCrayfish's Furniture Mod] (MrCrayfishFurnitureModv3.4.7-build5(1.8).jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	AS_MultiMine{1.4.5} [Multi Mine] (MultiMine-1.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	netheressence{2.0.0.1} [Nether Essence] (Nether Essence 2.0.0.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	wuppy29_nethereye{1.4.2} [Nether Eye] (Nether Eye 1.8.0-1.4.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	parachutemod{3.1.1} [Parachute Mod] (parachutemod-1.8.0-3.1.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	plantmegapack{5.00} [Plant Mega Pack] (plantmegapack-5.00-1.8-1285PR5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	portalgates{2.0.3 beta} [Portal Gates 2] (PortalGates2-mc1.8-2.0.3-beta.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	redstonepaste{1.7.1} [Redstone Paste] (redstonepaste-mc1.8-1.7.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	reptilemod{3.1.0} [Reptile Mod] (reptilemod-1.8.0-3.1.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	AS_Ruins{14.4} [Ruins Spawning System] (Ruins-1.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	wuppy29_simplerecipes{1.9.0} [Simple Recipes] (Simple Recipes 1.8.0-1.9.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	kegare.skyland{1.0.5} [Skyland] (Skyland_1.8-v1.0.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	wuppy29_snowgolem{1.6.2} [Clean Snow Golems] (Snow Golem 1.8.0-1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	XaeroSpecialAttacks{1.1.3} [Xaero's Special Attacks] (SpecialAttacks_1.1.3_1.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	spectralguns{1.1} [Spectral Guns] (SpectralGuns 1.1 [Forge 1.8].jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	Stackie{1.5.1.31} [Stackie] (Stackie-1.8-1.5.1.31-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	Waila{1.6.0_B1} [Waila] (Waila-1.6.0_B1_1.8.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	Profiler Position: N/A (disabled)
	Player Count: 1 / 20; [EntityPlayerMP['Kreezxil'/1050, l='world', x=888.68, y=64.00, z=-529.73]]
	Is Modded: Definitely; Server brand changed to 'fml,forge'
	Type: Dedicated Server (map_server.txt)