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I received this error report by pressing the pause or inventory button ingame after installing Smart Moving Mod and optifine mod from skydaz... Please help me

Minecraft has crashed!
----------------------

Minecraft has stopped running because it encountered a problem; Unexpected error

A full error report has been saved to C:\Users\Justin\AppData\Roaming\.minecraft\crash-reports\crash-2013-01-09_13.37.03-client.txt - Please include a copy of that file (Not this screen!) if you report this crash to anyone; without it, they will not be able to help fix the crash



--- BEGIN ERROR REPORT bfaf85e1 --------
Full report at:
C:\Users\Justin\AppData\Roaming\.minecraft\crash-reports\crash-2013-01-09_13.37.03-client.txt
Please show that file to Mojang, NOT just this screen!

Generated 1/9/13 1:37 PM

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [ays['xAgare'/36, l='MpServer', x=-728.81, y=5.62, z=-651.00]]
Chunk stats: MultiplayerChunkCache: 275
Level seed: 0
Level generator: ID 01 - flat, ver 0. Features enabled: false
Level generator options:
Level spawn location: World: (-571,4,-557), Chunk: (at 5,0,3 in -36,-35; contains blocks -576,0,-560 to -561,255,-545), Region: (-2,-2; contains chunks -64,-64 to -33,-33, blocks -1024,0,-1024 to -513,255,-513)
Level time: 2824 game time, 2824 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: 24 total; [qu['Villager'/0, l='MpServer', x=-755.22, y=5.00, z=-729.50], qu['Villager'/34, l='MpServer', x=-769.16, y=4.00, z=-695.50], qu['Villager'/1, l='MpServer', x=-766.31, y=5.00, z=-715.31], qu['Villager'/35, l='MpServer', x=-772.22, y=7.00, z=-691.50], qu['Villager'/2, l='MpServer', x=-762.66, y=4.00, z=-713.69], qu['Villager'/3, l='MpServer', x=-763.22, y=6.00, z=-700.44], qu['Villager'/33, l='MpServer', x=-777.88, y=4.00, z=-699.50], qu['Villager'/4, l='MpServer', x=-758.69, y=4.00, z=-699.59], qu['Villager'/5, l='MpServer', x=-761.84, y=4.00, z=-695.34], qu['Villager'/6, l='MpServer', x=-753.50, y=5.00, z=-672.50], ays['xAgare'/36, l='MpServer', x=-728.81, y=5.62, z=-651.00], qu['Villager'/7, l='MpServer', x=-756.66, y=4.00, z=-675.59], qu['Villager'/8, l='MpServer', x=-755.66, y=4.00, z=-673.16], qu['Villager'/9, l='MpServer', x=-758.22, y=4.00, z=-676.50], qu['Villager'/10, l='MpServer', x=-751.75, y=4.00, z=-676.66], qu['Villager'/12, l='MpServer', x=-751.88, y=4.00, z=-717.50], qu['Villager'/13, l='MpServer', x=-739.50, y=5.00, z=-688.50], qu['Villager'/14, l='MpServer', x=-749.42, y=5.00, z=-677.80], qu['Villager'/15, l='MpServer', x=-746.50, y=5.00, z=-680.50], qu['Villager'/17, l='MpServer', x=-742.31, y=4.00, z=-684.66], qu['Villager'/16, l='MpServer', x=-749.82, y=5.00, z=-680.51], qu['Villager'/19, l='MpServer', x=-740.38, y=4.00, z=-674.69], qu['Villager'/18, l='MpServer', x=-742.50, y=4.00, z=-681.16], qu['Villager'/20, l='MpServer', x=-734.47, y=4.00, z=-683.72]]
Retry entities: 0 total; []
Stacktrace:
at ayp.a(SourceFile:281)
at net.minecraft.client.Minecraft.b(SourceFile:1871)
at net.minecraft.client.Minecraft.run(SourceFile:548)
at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
Minecraft Version: 1.4.7
Operating System: Windows Vista (x86) version 6.0
Java Version: 1.7.0_07, Oracle Corporation
Java VM Version: Java HotSpot™ Client VM (mixed mode), Oracle Corporation
Memory: 274642664 bytes (261 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 2147 (120232 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used
Suspicious classes: IWrUpdater, Config, WrUpdates, ...[net.smart.moving.IPacketReceiver, IEntityPlayerSP, IPacketSender, ...], [net.smart.moving.config.SmartMovingProperties, SmartMovingConfig, SmartMovingClientConfig, ...], [net.smart.moving.playerapi.SmartMoving, SmartMovingPlayerBase, SmartMovingSelf, ...], [net.smart.moving.render.IRenderPlayer, RenderPlayer, IModelPlayer, ...], [net.smart.properties.Properties, Property, Value], [net.smart.render.SmartRenderContext, IRenderPlayer, RenderPlayer, ...], [net.smart.render.statistics.IEntityPlayerSP, SmartStatisticsContext, SmartStatistics, ...], [net.smart.render.statistics.playerapi.SmartStatistics, SmartStatisticsPlayerBase, SmartStatisticsFactory], [net.smart.utilities.Reflect, Utilities]
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
ModLoader: Mods loaded: 3
ModLoader 1.4.6
Smart Moving 11.11
Smart Render 1.0

LWJGL: 2.4.2
OpenGL: GeForce Go 6150/PCI/SSE2/3DNOW! GL version 2.1.2, NVIDIA Corporation
Is Modded: Very likely; Jar signature invalidated
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: 478 (26768 bytes; 0 MB) allocated, 18 (1008 bytes; 0 MB) used

java.lang.NoClassDefFoundError: aux
at net.minecraft.client.Minecraft.l(SourceFile:1273)
at net.minecraft.client.Minecraft.J(SourceFile:582)
at net.minecraft.client.Minecraft.run(SourceFile:534)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: aux
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 4 more
--- END ERROR REPORT ad7d2beb ----------