Every time I log on to the Lichcraft creative server I crash

---- Minecraft Crash Report ----
// Uh... Did I do that?

Time: 7/29/14 1:01 PM
Description: Rendering item

java.lang.ArrayIndexOutOfBoundsException: 57
	at ako.a(SourceFile:149)
	at aci.b_(SourceFile:19)
	at adb.j(SourceFile:407)
	at add.c(SourceFile:99)
	at bny.a(SourceFile:285)
	at bny.b(SourceFile:400)
	at bbv.a(SourceFile:744)
	at bbv.a(SourceFile:123)
	at blt.b(SourceFile:834)
	at bao.ak(SourceFile:801)
	at bao.f(SourceFile:728)
	at net.minecraft.client.main.Main.main(SourceFile:148)


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

-- Head --
Stacktrace:
	at ako.a(SourceFile:149)
	at aci.b_(SourceFile:19)
	at adb.j(SourceFile:407)
	at add.c(SourceFile:99)
	at bny.a(SourceFile:285)

-- Item being rendered --
Details:
	Item Type: aci@3fbcfba2
	Item Aux: 57
	Item NBT: null
	Item Foil: false
Stacktrace:
	at bny.b(SourceFile:400)
	at bbv.a(SourceFile:744)
	at bbv.a(SourceFile:123)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bjk['KoeppColto024470'/80934, l='MpServer', x=3314.30, y=66.62, z=1446.15]]
	Chunk stats: MultiplayerChunkCache: 121, 121
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (3359,65,1426), Chunk: (at 15,4,2 in 209,89; contains blocks 3344,0,1424 to 3359,255,1439), Region: (6,2; contains chunks 192,64 to 223,95, blocks 3072,0,1024 to 3583,255,1535)
	Level time: 143647820 game time, 143655309 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: Game mode: creative (ID 1). Hardcore: false. Cheats: false
	Forced entities: 3 total; [wv['Wolf'/-2147483579, l='MpServer', x=181.94, y=65.00, z=-2708.00], wh['Cow'/-2147483578, l='MpServer', x=182.94, y=65.00, z=-2710.56], bjk['KoeppColto024470'/80934, l='MpServer', x=3314.30, y=66.62, z=1446.15]]
	Retry entities: 0 total; []
	Server brand: BungeeCord (git:BungeeCord-Bootstrap:1.7-SNAPSHOT:"b167a45":919) <- Spigot
	Server type: Non-integrated multiplayer server
Stacktrace:
	at bjf.a(SourceFile:289)
	at bao.b(SourceFile:1972)
	at bao.f(SourceFile:737)
	at net.minecraft.client.main.Main.main(SourceFile:148)

-- System Details --
Details:
	Minecraft Version: 1.7.10
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.7.0_51, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 169225776 bytes (161 MB) / 263172096 bytes (250 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: 0, tallocated: 0
	Launched Version: 1.7.10
	LWJGL: 2.9.1
	OpenGL: AMD Radeon HD 6250 Graphics GL version 4.3.12618 Compatibility Profile Context 13.251.0.0, ATI Technologies Inc.
	GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: [Mizark's Medieval Resource Pack.zip]
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Anisotropic Filtering: Off (1)