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I have currently 5 mods in my server: Metallurgy, MoCreatures, Mystcraft, Thaumcraft, and Extrabiomes XL. For some reason when I start my server Its all good. but like a hour later, it crashes. This is the report:

---- Minecraft Crash Report ----
// On the bright side, I bought you a teddy bear!

Time: 3/9/13 12:53 PM
Description: Exception in server tick loop

java.lang.NoSuchMethodError: up.onArmorTickUpdate(Lyc;Lqx;Lur;)V
at qw.j(InventoryPlayer.java:345)
at qx.c(EntityPlayer.java:558)
at md.j_(EntityLiving.java:843)
at qx.j_(EntityPlayer.java:328)
at iq.g(EntityPlayerMP.java:286)
at iv.a(NetServerHandler.java:310)
at eb.a(SourceFile:136)
at cg.b(TcpConnection.java:458)
at iv.d(NetServerHandler.java:136)
at iw.b(NetworkListenThread.java:57)
at ht.b(SourceFile:30)
at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:703)
at ho.r(DedicatedServer.java:269)
at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:599)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:497)
at fy.run(SourceFile:849)


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

-- System Details --
Details:
Minecraft Version: 1.4.7
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.6.0_14, Sun Microsystems Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
Memory: 913630960 bytes (871 MB) / 1029046272 bytes (981 MB) up to 1029046272 bytes (981 MB)
JVM Flags: 2 total; -Xmx1024M -Xms1024M
AABB Pool Size: 3448 (193088 bytes; 0 MB) allocated, 3448 (193088 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 2, tallocated: 62
FML: MCP v7.26a FML v4.7.22.539 Minecraft Forge 6.6.0.515 15 mods loaded, 15 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
MetallurgyCore [Metallurgy Core] (all metall.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MetallurgyBase [Metallurgy Base] (all metall.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MetallurgyEnder [Metallurgy Ender] (all metall.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MetallurgyFantasy [Metallurgy Fantasy] (all metall.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MetallurgyNether [Metallurgy Nether] (all metall.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MetallurgyPrecious [Metallurgy Precious] (all metall.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MetallurgyUtility [Metallurgy Utility] (all metall.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CustomSpawner [DrZhark's CustomSpawner] (CustomMobSpawner 1.11 (7).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MoCreatures [DrZhark's Mo'Creatures Mod] (DrZharks MoCreatures Mod v4.5.1 (11).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ExtrabiomesXL [ExtrabiomesXL] (ExtrabiomesXL-universal-1.4.7-3.10.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Mystcraft [Mystcraft] (mystcraft-uni-1.4.7-0.10.0.00 (3).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Thaumcraft [Thaumcraft] (Thaumcraft3.0.3.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Profiler Position: N/A (disabled)
Vec3 Pool Size: 2788 (156128 bytes; 0 MB) allocated, 2788 (156128 bytes; 0 MB) used
Player Count: 1 / 36; [iq['synthoz'/224, l='world', x=275.70, y=60.00, z=-308.20]]
Is Modded: Definitely; Server brand changed to 'fml'
Type: Dedicated Server (map_server.txt)



Any ideas on what i should do to keep all of the mods i have?