Minecraft Forums

I Have downloaded this modpack
http://www.4shared.com/rar/On3kOf6N/mocreatures_2.html ,
but when i try to play it on server , the minecraft crashes :

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

Minecraft has stopped running because it encountered a problem; Exception in world tick

A full error report has been saved to C:\Users\Nicolas\AppData\Roaming\.minecraft\crash-reports\crash-2013-05-11_00.58.43-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 39a097e7 --------
Full report at:
C:\Users\Nicolas\AppData\Roaming\.minecraft\crash-reports\crash-2013-05-11_00.58.43-client.txt
Please show that file to Mojang, NOT just this screen!

Generated 11/05/13 00:58

-- Head --
Stacktrace:
at cpw.mods.fml.common.network.EntitySpawnPacket.execute(EntitySpawnPacket.java:175)
at cpw.mods.fml.common.network.FMLNetworkHandler.handleFMLPacket(FMLNetworkHandler.java:102)
at cpw.mods.fml.common.network.FMLNetworkHandler.handlePacket250Packet(FMLNetworkHandler.java:67)
at ayh.a(NetClientHandler.java:1483)
at di.a(SourceFile:59)
at cg.b(TcpConnection.java:458)
at ayh.d(NetClientHandler.java:240)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [ays['~LeNicolas~'/3874, l='MpServer', x=-51,50, y=70,24, z=259,50]]
Chunk stats: MultiplayerChunkCache: 140
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (-56,64,252), Chunk: (at 8,4,12 in -4,15; contains blocks -64,0,240 to -49,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 2205 game time, 2205 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: survival (ID 0). Hardcore: false. Cheats: false
Forced entities: 18 total; [ays['~LeNicolas~'/3874, l='MpServer', x=-51,50, y=70,24, z=259,50], MoCEntitySnake['Snake'/4004, l='MpServer', x=25,50, y=71,00, z=340,50], MoCEntityCaveOgre['CaveOgre'/3972, l='MpServer', x=-128,50, y=65,00, z=345,50], qr['Zumbi'/3887, l='MpServer', x=-47,50, y=19,00, z=294,50], MoCEntitySnake['Snake'/4000, l='MpServer', x=26,47, y=71,91, z=343,19], ow['Morcego'/4103, l='MpServer', x=-13,50, y=27,00, z=225,50], qr['Zumbi'/3883, l='MpServer', x=-45,50, y=19,00, z=291,50], qr['Zumbi'/3879, l='MpServer', x=-47,50, y=19,00, z=290,50], px['item.tile.mushroom'/3873, l='MpServer', x=-103,13, y=36,13, z=305,16], MoCEntityFlameWraith['FlameWraith'/3911, l='MpServer', x=-85,50, y=28,00, z=329,50], MoCEntityShark['Shark'/4111, l='MpServer', x=-111,59, y=58,72, z=189,41], px['item.item.reeds'/17, l='MpServer', x=-27,47, y=63,13, z=306,75], px['item.item.reeds'/16, l='MpServer', x=-28,66, y=63,13, z=304,44], MoCEntityShark['Shark'/4115, l='MpServer', x=-114,41, y=57,13, z=192,34], MoCEntityShark['Shark'/4119, l='MpServer', x=-115,53, y=58,72, z=190,50], MoCEntityBear['Bear'/3996, l='MpServer', x=24,50, y=71,00, z=343,50], MoCEntityFlameWraith['FlameWraith'/4153, l='MpServer', x=-77,50, y=35,00, z=295,50], MoCEntityShark['Shark'/4123, l='MpServer', x=-116,16, y=58,72, z=189,63]]
Retry entities: 0 total; []
Stacktrace:
at ayp.a(WorldClient.java:439)
at net.minecraft.client.Minecraft.l(Minecraft.java:1885)
at net.minecraft.client.Minecraft.J(Minecraft.java:846)
at net.minecraft.client.Minecraft.run(Minecraft.java:771)
at java.lang.Thread.run(Unknown Source)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [ays['~LeNicolas~'/3874, l='MpServer', x=-51,50, y=70,24, z=259,50]]
Chunk stats: MultiplayerChunkCache: 140
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (-56,64,252), Chunk: (at 8,4,12 in -4,15; contains blocks -64,0,240 to -49,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 2205 game time, 2205 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: survival (ID 0). Hardcore: false. Cheats: false
Forced entities: 18 total; [ays['~LeNicolas~'/3874, l='MpServer', x=-51,50, y=70,24, z=259,50], MoCEntitySnake['Snake'/4004, l='MpServer', x=25,50, y=71,00, z=340,50], MoCEntityCaveOgre['CaveOgre'/3972, l='MpServer', x=-128,50, y=65,00, z=345,50], qr['Zumbi'/3887, l='MpServer', x=-47,50, y=19,00, z=294,50], MoCEntitySnake['Snake'/4000, l='MpServer', x=26,47, y=71,91, z=343,19], ow['Morcego'/4103, l='MpServer', x=-13,50, y=27,00, z=225,50], qr['Zumbi'/3883, l='MpServer', x=-45,50, y=19,00, z=291,50], qr['Zumbi'/3879, l='MpServer', x=-47,50, y=19,00, z=290,50], px['item.tile.mushroom'/3873, l='MpServer', x=-103,13, y=36,13, z=305,16], MoCEntityFlameWraith['FlameWraith'/3911, l='MpServer', x=-85,50, y=28,00, z=329,50], MoCEntityShark['Shark'/4111, l='MpServer', x=-111,59, y=58,72, z=189,41], px['item.item.reeds'/17, l='MpServer', x=-27,47, y=63,13, z=306,75], px['item.item.reeds'/16, l='MpServer', x=-28,66, y=63,13, z=304,44], MoCEntityShark['Shark'/4115, l='MpServer', x=-114,41, y=57,13, z=192,34], MoCEntityShark['Shark'/4119, l='MpServer', x=-115,53, y=58,72, z=190,50], MoCEntityBear['Bear'/3996, l='MpServer', x=24,50, y=71,00, z=343,50], MoCEntityFlameWraith['FlameWraith'/4153, l='MpServer', x=-77,50, y=35,00, z=295,50], MoCEntityShark['Shark'/4123, l='MpServer', x=-116,16, y=58,72, z=189,63]]
Retry entities: 0 total; []

-- System Details --
Details:
Minecraft Version: 1.4.7
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_21, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 324949800 bytes (309 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 29 (1624 bytes; 0 MB) allocated, 29 (1624 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v7.26a FML v4.7.22.539 Minecraft Forge 6.6.0.518 Optifine OptiFine_1.4.6_HD_U_D3 20 mods loaded, 20 mods active
mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
TreeCapitator [TreeCapitator] ([1.4.6]TreeCapitator.Forge.1.4.6.r06.Uni.CoreMod.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
GuiAPI [GuiAPI] (GuiAPI-0.15.2-1.4.6(1).jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
Doggy Talents [Doggy Talents] ([1.4.7] Doggy Talents - 1.0.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
mod_ReiMinimap [mod_ReiMinimap] ([1.4.7]ReiMinimap_v3.2_06(1).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
BattleTowers [Battle Towers] (BattleTowers_1.4.6.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
CustomSpawner [DrZhark's CustomSpawner] (CustomMobSpawner 1.11.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
MoCreatures [DrZhark's Mo'Creatures Mod] (DrZharks MoCreatures Mod v4.5.1.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
Lepko-EasyCrafting [Easy Crafting] (EasyCrafting-1.1.3.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
InfernalMobs [Infernal Mobs] (InfernalMobs_1.4.6.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
mod_InvTweaks [Inventory Tweaks] (InvTweaks-1.50-1.4.7.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
mod_MAtmos [mod_MAtmos] (matmos_packaged.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
MutantCreatures [Mutant Creatures] (Mutant Creatures v1.2.2 mc1.4.7.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
NetherOres [Nether Ores] (NetherOres_1.4.6.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
AS_Ruins [Ruins Spawning System] (Ruins_1.4.6.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
SimpleOres [SimpleOres] (SimpleOres 1.4.7.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
TwilightForest [The Twilight Forest] (twilightforest-1.15.3.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
AS_UpdateCheck [AtomicStryker Update Check Mod] (UpdateCheckerMod_1.4.6.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
LWJGL: 2.4.2
OpenGL: GeForce GTX 550 Ti/PCIe/SSE2/3DNOW! GL version 4.2.0, NVIDIA Corporation
Is Modded: Definitely; Client brand changed to 'forge,fml'
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: 125 (7000 bytes; 0 MB) allocated, 15 (840 bytes; 0 MB) used

java.lang.NullPointerException
at cpw.mods.fml.common.network.EntitySpawnPacket.execute(EntitySpawnPacket.java:175)
at cpw.mods.fml.common.network.FMLNetworkHandler.handleFMLPacket(FMLNetworkHandler.java:102)
at cpw.mods.fml.common.network.FMLNetworkHandler.handlePacket250Packet(FMLNetworkHandler.java:67)
at ayh.a(NetClientHandler.java:1483)
at di.a(SourceFile:59)
at cg.b(TcpConnection.java:458)
at ayh.d(NetClientHandler.java:240)
at ayp.b(WorldClient.java:92)
at net.minecraft.client.Minecraft.l(Minecraft.java:1872)
at net.minecraft.client.Minecraft.J(Minecraft.java:846)
at net.minecraft.client.Minecraft.run(Minecraft.java:771)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 63cbfc11 ----------

Can someone help me?