i dont what it is

---- Minecraft Crash Report ----
// Don't be sad, have a hug! <3

Time: 07-12-12 23:31
Description: Exception in world tick

java.lang.ArrayIndexOutOfBoundsException
	at java.lang.System.arraycopy(Native Method)
	at zs.a(Chunk.java:1299)
	at axz.a(NetClientHandler.java:1129)
	at du.a(SourceFile:135)
	at cg.b(SourceFile:349)
	at sushen.oeoae.b(Unknown Source)
	at axz.d(NetClientHandler.java:90)
	at ayh.b(SourceFile:62)
	at net.minecraft.client.Minecraft.l(SourceFile:1331)
	at net.minecraft.client.Minecraft.J(SourceFile:582)
	at net.minecraft.client.Minecraft.run(SourceFile:534)
	at java.lang.Thread.run(Unknown Source)


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

-- Head --
Stacktrace:
	at java.lang.System.arraycopy(Native Method)
	at zs.a(Chunk.java:1299)
	at axz.a(NetClientHandler.java:1129)
	at du.a(SourceFile:135)
	at cg.b(SourceFile:349)
	at sushen.oeoae.b(Unknown Source)
	at axz.d(NetClientHandler.java:90)

-- Affected level --
Details:
	Level name: MpServer
	All players: 3 total; [EntityClientPlayerFlying['K4bb'/199, l='MpServer', x=141,03, y=73,62, z=179,50], VoxelPlayerEntityOtherPlayerMP['lukassandersen'/193, l='MpServer', x=142,19, y=72,94, z=177,94], VoxelPlayerEntityOtherPlayerMP['Capper5198'/169, l='MpServer', x=132,81, y=82,50, z=123,28]]
	Chunk stats: MultiplayerChunkCache: 399
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (353,73,-147), Chunk: (at 1,4,13 in 22,-10; contains blocks 352,0,-160 to 367,255,-145), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
	Level time: 172466357 game time, 23438 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: adventure (ID 2). Hardcore: false. Cheats: false
	Forced entities: 14 total; [EntityClientPlayerFlying['K4bb'/199, l='MpServer', x=141,03, y=73,62, z=179,50], VoxelPlayerEntityOtherPlayerMP['lukassandersen'/193, l='MpServer', x=142,19, y=72,94, z=177,94], VoxelPlayerEntityOtherPlayerMP['Capper5198'/169, l='MpServer', x=132,81, y=82,50, z=123,28], mc['entity.ItemFrame.name'/139, l='MpServer', x=34,50, y=182,50, z=145,94], mc['entity.ItemFrame.name'/138, l='MpServer', x=41,94, y=80,50, z=85,50], RenderEntity['CUI'/4, l='MpServer', x=141,03, y=73,62, z=179,50], mc['entity.ItemFrame.name'/143, l='MpServer', x=68,50, y=176,50, z=178,06], VoxelPlayerEntityOtherPlayerMP['Capper5198'/169, l='MpServer', x=132,81, y=82,50, z=123,28], mc['entity.ItemFrame.name'/196, l='MpServer', x=57,50, y=130,50, z=303,94], VoxelPlayerEntityOtherPlayerMP['lukassandersen'/193, l='MpServer', x=142,19, y=72,94, z=177,94], mc['entity.ItemFrame.name'/195, l='MpServer', x=56,50, y=130,50, z=303,94], pe['Sheep'/147, l='MpServer', x=90,13, y=161,00, z=111,53], oy['Chicken'/149, l='MpServer', x=102,63, y=155,00, z=100,53], mc['entity.ItemFrame.name'/150, l='MpServer', x=130,06, y=36,50, z=195,50]]
	Retry entities: 0 total; []
Stacktrace:
	at ayh.a(SourceFile:290)
	at net.minecraft.client.Minecraft.l(SourceFile:1338)
	at net.minecraft.client.Minecraft.J(SourceFile:582)
	at net.minecraft.client.Minecraft.run(SourceFile:534)
	at java.lang.Thread.run(Unknown Source)

-- Affected level --
Details:
	Level name: MpServer
	All players: 3 total; [EntityClientPlayerFlying['K4bb'/199, l='MpServer', x=141,03, y=73,62, z=179,50], VoxelPlayerEntityOtherPlayerMP['lukassandersen'/193, l='MpServer', x=142,19, y=72,94, z=177,94], VoxelPlayerEntityOtherPlayerMP['Capper5198'/169, l='MpServer', x=132,81, y=82,50, z=123,28]]
	Chunk stats: MultiplayerChunkCache: 399
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (353,73,-147), Chunk: (at 1,4,13 in 22,-10; contains blocks 352,0,-160 to 367,255,-145), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
	Level time: 172466357 game time, 23438 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: adventure (ID 2). Hardcore: false. Cheats: false
	Forced entities: 14 total; [EntityClientPlayerFlying['K4bb'/199, l='MpServer', x=141,03, y=73,62, z=179,50], VoxelPlayerEntityOtherPlayerMP['lukassandersen'/193, l='MpServer', x=142,19, y=72,94, z=177,94], VoxelPlayerEntityOtherPlayerMP['Capper5198'/169, l='MpServer', x=132,81, y=82,50, z=123,28], mc['entity.ItemFrame.name'/139, l='MpServer', x=34,50, y=182,50, z=145,94], mc['entity.ItemFrame.name'/138, l='MpServer', x=41,94, y=80,50, z=85,50], RenderEntity['CUI'/4, l='MpServer', x=141,03, y=73,62, z=179,50], mc['entity.ItemFrame.name'/143, l='MpServer', x=68,50, y=176,50, z=178,06], VoxelPlayerEntityOtherPlayerMP['Capper5198'/169, l='MpServer', x=132,81, y=82,50, z=123,28], mc['entity.ItemFrame.name'/196, l='MpServer', x=57,50, y=130,50, z=303,94], VoxelPlayerEntityOtherPlayerMP['lukassandersen'/193, l='MpServer', x=142,19, y=72,94, z=177,94], mc['entity.ItemFrame.name'/195, l='MpServer', x=56,50, y=130,50, z=303,94], pe['Sheep'/147, l='MpServer', x=90,13, y=161,00, z=111,53], oy['Chicken'/149, l='MpServer', x=102,63, y=155,00, z=100,53], mc['entity.ItemFrame.name'/150, l='MpServer', x=130,06, y=36,50, z=195,50]]
	Retry entities: 0 total; []

-- System Details --
Details:
	Minecraft Version: 1.4.5
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_09, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 303552264 bytes (289 MB) / 518979584 bytes (494 MB) up to 518979584 bytes (494 MB)
	LiteLoader Mods: 10 loaded mod(s)
          - Macro / Keybind Mod version 0.9.6.1
          - VoxelWorld version 1.0 for mc1.4.4
          - VoxelPacket version 2.0
          - WorldEditCUI by yetanotherx version 1.4.4_01_lite
          - VoxelTextures version 0.7.1
          - VoxelPlayer version 0.9.1
          - Integrated Sound Packs version 1.1
          - VoxelSniper GUI version 1.8
          - HD Skins and Capes version 1.1
          - VoxelFlight version 1.6
	JVM Flags: 2 total; -Xms512m -Xmx512m
	AABB Pool Size: 245 (13720 bytes; 0 MB) allocated, 48 (2688 bytes; 0 MB) used
	Suspicious classes: IWrUpdater, Config, WrUpdaterThreaded, ...[com.mumfrey.liteloader.LiteMod, LoginListener, Tickable, ...], [com.mumfrey.liteloader.core.LiteLoader, HookChat, HookLogin, ...], [com.mumfrey.liteloader.util.ModUtilities, PrivateFields, StaticFields], [com.thevoxelbox.common.RenderRenderHook, EntityRenderHook, Reflection, ...], [com.thevoxelbox.common.interfaces.IRenderHookCallback, INotifyable], [com.thevoxelbox.common.net.Download, ResourceType, ThreadDownloadResource], [com.thevoxelbox.common.updates.FileUpdateManager], [com.thevoxelbox.common.xml.XmlHelper, XmlNamespaceContext], [com.thevoxelbox.hdskins.ThreadDownloadImageDataHD, ImageBufferDownloadHD, ThreadDownloadImageHD], [com.thevoxelbox.hdskins.gui.RenderPlayerModel, EntityPlayerModel], [com.thevoxelbox.hdskins.mod.LiteModHDSkinsClean], [com.thevoxelbox.hdskins.renderer.RenderEngineProxy], [com.thevoxelbox.hdskins.util.PrivateFields, Reflection], [com.thevoxelbox.texturepackutils.core.VoxelTexturePackUtilsModCore, TexturePackManager, LocalisationManager, ...], [com.thevoxelbox.texturepackutils.extras.RenderDragon, RenderWither, BlockMobSpawner, ...], [com.thevoxelbox.texturepackutils.gui.ScreenTransformer], [com.thevoxelbox.voxelflight.LiteModVoxelFlight, VoxelFlightConfig, VoxelFlightControl, ...], [com.thevoxelbox.voxelflight.hooks.VoxelFlightGuiSelectWorld, Packet1Login, PlayerControllerMPFlying], [com.thevoxelbox.voxelflight.integratedserver.VoxelFlightIntegratedPlayerList], [com.thevoxelbox.voxelpacket.client.LiteModVoxelPacket, VoxelPacketClient, ChatManager, ...], [com.thevoxelbox.voxelpacket.common.VoxelPacketHandlerBase, VoxelPacket, Util, ...], [com.thevoxelbox.voxelpacket.common.data.VoxelPacketCharset, VoxelPacketCharsetEncoder, VoxelPacketCharsetDecoder], [com.thevoxelbox.voxelpacket.common.encoders.VoxelPacketEncoderNull, VoxelPacketEncoderRaw, VoxelPacketEncoderObject, ...], [com.thevoxelbox.voxelpacket.common.interfaces.IVoxelMessageSubscriber, IChatSubscriber, IVoxelPacketHandler, ...], [com.thevoxelbox.voxelpacket.exceptions.VoxelPacketException, MissingEncoderException, MessageOverflowException, ...], [com.thevoxelbox.voxelplayer.LiteModVoxelPlayer, VoxelPlayerRenderPlayer, VoxelPlayerGUI, ...], [com.thevoxelbox.voxelplayer.model.ModelBipedCustom, ModelBipedGir, ModelBoxTapered], [com.thevoxelbox.voxelworld.VoxelWorldConfig, VoxelWorldControl, VoxelWorldGUI, ...], [jimmynator.voxelsnipergui.LiteModVoxelSniperGUI, GuiVoxelSniper, Window, ...], [net.eq2online.jinput.JInputComponentRegistry], [net.eq2online.macros.LiteModMacros, AutoDiscoveryAgent, AutoDiscoveryState], [net.eq2online.macros.compatibility.AbstractionLayer, DelegateDisconnect, GuiButton, ...], [net.eq2online.macros.compatibility.hooks.ITimerTickListener, Packet22CollectHookable, TimerHookable], [net.eq2online.macros.core.MacroModCore, Macros, MacroTemplate, ...], [net.eq2online.macros.core.params.Type], [net.eq2online.macros.event.MacroEventManager, MacroEvent, MacroEventDispatcher, ...], [net.eq2online.macros.event.providers.OnJoinGameProvider, OnChatProvider, OnInventorySlotChangeProvider, ...], [net.eq2online.macros.gui.controls.GuiListBox, GuiListBoxIconic, GuiListBoxFilebound, ...], [net.eq2online.macros.gui.controls.specialised.GuiListBoxFile, GuiListBoxPlaces, GuiListBoxFriends, ...], [net.eq2online.macros.gui.designable.DesignableGui, DesignableGuiLayout, DesignableGuiControl, ...], [net.eq2online.macros.gui.designable.editor.GuiDialogBoxControlProperties, GuiDialogBoxTextAreaProperties, GuiDialogBoxLabelProperties], [net.eq2online.macros.gui.dialogs.GuiDialogBoxFirstRunPrompt, GuiDialogBoxStartupErrors], [net.eq2online.macros.gui.helpers.ListProvider, HelperThumbnailImage, HelperUserSkinDownload], [net.eq2online.macros.gui.layout.LayoutPanel, LayoutPanelStandard, LayoutPanelKeys, ...], [net.eq2online.macros.gui.list.ListObjectGeneric, ListObjectEditable], [net.eq2online.macros.gui.screens.GuiControlsEx, GuiScreenWithHeader, GuiEditThumbnails, ...], [net.eq2online.macros.gui.shared.GuiScreenEx, GuiDialogBox, GuiControlEx], [net.eq2online.macros.input.IInputHandlerModule, InputHandler, KeyInjectionProxy, ...], [net.eq2online.macros.interfaces.ILocalisationProvider, ISettingsProvider, ISaveSettings, ...], [net.eq2online.macros.permissions.MacroModPermissions], [net.eq2online.macros.rendering.FontRendererLegacy, RenderEngineHelper], [net.eq2online.macros.scripting.IErrorLogger, Documentor, ScriptActionProvider, ...], [net.eq2online.macros.scripting.actions.ScriptActionAchievementGet, ScriptActionClearChat, ScriptActionGui, ...], [net.eq2online.macros.scripting.actions.game.ScriptActionSlotClick, ScriptActionCraft, ScriptActionCraftAndWait, ...], [net.eq2online.macros.scripting.actions.input.ScriptActionKey, ScriptActionKeyUp, ScriptActionKeyDown, ...], [net.eq2online.macros.scripting.actions.lang.ScriptActionAssign, ScriptActionDec, ScriptActionDo, ...], [net.eq2online.macros.scripting.actions.mod.ScriptActionConfig, ScriptActionImport, ScriptActionUnimport], [net.eq2online.macros.scripting.actions.option.ScriptActionBind, ScriptActionFog, ScriptActionGamma, ...], [net.eq2online.macros.scripting.api.IScriptActionProvider, IVariableProvider, ICounterProvider, ...], [net.eq2online.macros.scripting.crafting.IAutoCraftingInitiator, AutoCraftingManager], [net.eq2online.macros.scripting.exceptions.ScriptException], [net.eq2online.macros.scripting.iterators.ScriptedIteratorEnchantments, ScriptedIteratorPlayers], [net.eq2online.macros.struct.ItemInfo, Place], [net.eq2online.permissions.PermissionsManagerBootstrap, PermissionsEventListener, PermissionsManager, ...], [net.eq2online.permissions.impl.PermissionsManagerClient, LocalPermissions], [net.eq2online.soundpacks.LiteModIntegratedSoundPacks, SoundPackManager, SoundPoolProxy, ...], [net.eq2online.xml.Xml, Xmlns], [net.java.games.input.ControllerEnvironment, DirectAndRawInputEnvironmentPlugin, DefaultControllerEnvironment, ...], [net.java.games.util.plugins.Plugins, Plugin], [org.yaml.snakeyaml.DumperOptions, ScalarStyle, FlowStyle, ...], [org.yaml.snakeyaml.composer.Composer, ComposerException], [org.yaml.snakeyaml.constructor.BaseConstructor, SafeConstructor, Constructor, ...], [org.yaml.snakeyaml.emitter.Emitable], [org.yaml.snakeyaml.error.YAMLException, MarkedYAMLException, Mark], [org.yaml.snakeyaml.events.Event, NodeEvent, AliasEvent, ...], [org.yaml.snakeyaml.external.com.google.gdata.util.common.base.Escaper, UnicodeEscaper, PercentEscaper], [org.yaml.snakeyaml.introspector.PropertyUtils, BeanAccess], [org.yaml.snakeyaml.nodes.NodeId, Tag, Node, ...], [org.yaml.snakeyaml.parser.Parser, ParserImpl, Production, ...], [org.yaml.snakeyaml.reader.UnicodeReader, StreamReader, ReaderException], [org.yaml.snakeyaml.representer.BaseRepresenter, SafeRepresenter, Representer, ...], [org.yaml.snakeyaml.resolver.Resolver, ResolverTuple], [org.yaml.snakeyaml.scanner.Scanner, ScannerImpl, ScannerException, ...], [org.yaml.snakeyaml.tokens.Token, AliasToken, TagToken, ...], [org.yaml.snakeyaml.util.UriEncoder, ArrayStack], [reifnsk.minimap.ReiMinimap, WaypointEntity, MinimapException, ...], [sushen.oaooa, aeeae, aoeoo, ...], [wecui.InitializationFactory, WorldEditCUI, CUIDebug, ...], [wecui.config.CUIConfiguration, ConfigurationNode, Configuration, ...], [wecui.event.ChannelEvent, CUIEvent, WorldRenderEvent, ...], [wecui.event.listeners.CUIListener, ChannelListener, WorldRenderListener, ...], [wecui.exception.InitializationException, ConfigurationException, ReflectException], [wecui.fevents.Event, Listener, EventManager, ...], [wecui.obfuscation.Obfuscation, DataPacketList, FieldObfuscation, ...], [wecui.render.RenderHooks, RenderEntity, LineColor, ...], [wecui.render.region.BaseRegion, CuboidRegion], [wecui.util.Vector3, Vector3m, ConsoleLogFormatter]
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	ModLoader: Mods loaded: 3
ModLoader 1.4.5
mod_CameraStudio V2.5 (for Minecraft 1.4.4)
mod_TooManyItems 1.4.5 2012-11-30

	LWJGL: 2.4.2
	OpenGL: AMD Radeon HD 6500M/5600/5700 Series GL version 4.2.11762 Compatibility Profile Context, ATI Technologies Inc.
	Is Modded: Very likely; Jar signature invalidated
	Type: Client (map_client.txt)
	Texture Pack: Razulcraft 32p HD.zip
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 597 (33432 bytes; 0 MB) allocated, 24 (1344 bytes; 0 MB) used