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Can anyone solve this what is the problem?

Minecraft has crashed!
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Minecraft has stopped running because it encountered a problem; Exception in server tick loop

A full error report has been saved to C:\Users\USER\AppData\Roaming\.minecraft\crash-reports\crash-2013-04-05_08.45.49-server.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 cf5089de --------
Full report at:
C:\Users\USER\AppData\Roaming\.minecraft\crash-reports\crash-2013-04-05_08.45.49-server.txt
Please show that file to Mojang, NOT just this screen!

Generated 4/5/13 8:45 AM

-- System Details --
Details:
Minecraft Version: 1.5.1
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_17, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 390835024 bytes (372 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 5633 (315448 bytes; 0 MB) allocated, 5633 (315448 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v7.44 FML v5.1.8.611 Minecraft Forge 7.7.1.611 Optifine OptiFine_1.5.1_HD_U_A8 6 mods loaded, 6 mods active
mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_TooManyItems [mod_TooManyItems] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CustomNpcs [CustomNpcs] (CustomNPCs_1.5.1.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_MAtmos [mod_MAtmos] (matmos_packaged.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Profiler Position: N/A (disabled)
Vec3 Pool Size: 780 (43680 bytes; 0 MB) allocated, 780 (43680 bytes; 0 MB) used
Player Count: 0 / 8; []
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'forge,fml'

java.lang.NoClassDefFoundError: com/sijobe/spc/core/HookManager
at net.minecraft.entity.player.EntityPlayerMP.<clinit>(EntityPlayerMP.java:88)
at net.minecraft.server.management.ServerConfigurationManager.func_72366_a(ServerConfigurationManager.java:383)
at net.minecraft.server.integrated.IntegratedServerListenThread.func_71747_b(IntegratedServerListenThread.java:91)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:674)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:570)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:171)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:468)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
Caused by: java.lang.ClassNotFoundException: com.sijobe.spc.core.HookManager
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:211)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 8 more
Caused by: java.lang.NullPointerException
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:200)
... 10 more
--- END ERROR REPORT 40c4de07 ----------

try it with no mods? im guessing the mods are interfering with eachother just force update and try to find which mods are incompatible

Single Player commands is not installed properly.
Which of course means that you posted in the wrong forum.

Sorry Gerbil i dont know where to post the topic properly so i posted in this base topic.
I Have
Minecraft Forge
Matmos 1.5.1
CustomNPC 1.5.1
SPC mod
Panicle_craft mod
These mods i am using,
Some commands in my spc are'nt working so i tried to download Automated Installation and that worked
----------------------
1 more thing,
If i make my dropped items and Clouds into Fancy it will crash my mc

Quote from ImClintBeastWood

try it with no mods? im guessing the mods are interfering with eachother just force update and try to find which mods are incompatible

Some of the Peoples aren't smart..they put a mod and name it 1.5.1 but when i download that mod it will bring for me 1.4.7,
1.5.1 mods are'nt still updated yet so iam searching for more.