SMP Crash: IronChests causing Class Cast Exception

[Nantangitan]

Title: SMP Crash: IronChests causing Class Cast Exception

Version: 3.1.2

OS: Win7 Ultimate x64

Java Version: J6u34

Description of Problem:

Tekkit will randomly crash in multiplayer with the error log reporting an issue casing BlockIronChest to type sn

Error Messages:

None, screen turns white.

Error Log:

[18:21:08] [sEVERE]	java.lang.ClassCastException: cpw.mods.ironchest.BlockIronChest cannot be cast to sn

[18:21:08] [sEVERE]		at ajq.a(SourceFile:32)

[18:21:08] [sEVERE]		at ajq.a(SourceFile:17)

[18:21:08] [sEVERE]		at ach.a(TileEntityRenderer.java:147)

[18:21:08] [sEVERE]		at ach.a(TileEntityRenderer.java:134)

[18:21:08] [sEVERE]		at l.a(RenderGlobal.java:467)

[18:21:08] [sEVERE]		at lr.a(EntityRenderer.java:1351)

[18:21:08] [sEVERE]		at lr.b(EntityRenderer.java:1052)

[18:21:08] [sEVERE]		at net.minecraft.client.Minecraft.x(Minecraft.java:876)

[18:21:08] [sEVERE]		at net.minecraft.client.Minecraft.run(Minecraft.java:753)

[18:21:08] [sEVERE]		at java.lang.Thread.run(Unknown Source)

[18:21:18] [sEVERE]	2012-09-05 18:21:18 [sEVERE] A critical error has occurred.

java.lang.ClassCastException: cpw.mods.ironchest.BlockIronChest cannot be cast to sn

	at ajq.a(SourceFile:32)

	at ajq.a(SourceFile:17)

	at ach.a(TileEntityRenderer.java:147)

	at ach.a(TileEntityRenderer.java:134)

	at l.a(RenderGlobal.java:467)

	at lr.a(EntityRenderer.java:1351)

	at lr.b(EntityRenderer.java:1052)

	at net.minecraft.client.Minecraft.x(Minecraft.java:876)

	at net.minecraft.client.Minecraft.run(Minecraft.java:753)

	at java.lang.Thread.run(Unknown Source)



[18:21:18] [sEVERE]	2012-09-05 18:21:18 [sEVERE] 41 mods loaded

Optifine OptiFine_1.2.5_HD_S_C6

Minecraft Forge 3.3.8.164

FML v2.2.106.176

Forge Mod Loader version 2.2.106.176 for Minecraft 1.2.5

	mod_CodeChickenCore : Available (modpack.jar)

	mod_MinecraftForge : Available (modpack.jar)

	mod_NotEnoughItems : Available (modpack.jar)

	mod_ReiMinimap : Available ([1.2.5]ReiMinimap_v3.2_04.zip)

	mod_IC2 : Available (industrialcraft-2-client_1.97.jar)

	mod_IC2AdvancedMachines : Available (AdvancedMachines_4.0_client.zip)

	mod_BuildCraftCore : Available (buildcraft-client-A-core-2.2.14.zip)

	mod_BuildCraftBuilders : Available (buildcraft-client-B-builders-2.2.14.zip)

	mod_BuildCraftEnergy : Available (buildcraft-client-B-energy-2.2.14.zip)

	mod_BuildCraftFactory : Available (buildcraft-client-B-factory-2.2.14.zip)

	mod_BuildCraftTransport : Available (buildcraft-client-B-transport-2.2.14.zip)

	mod_AdditionalPipes : Available (buildcraft-client-DA-additionalpipes-2.1.3.zip)

	mod_ComputerCraft : Available (ComputerCraft)

	mod_RedPowerMachine : Available (RedPowerMachine-2.0pr5b2.zip)

	mod_ccSensors : Available (ccSensors-client-MC125-B017pr1.zip)

	mod_CCTurtle : Available (ComputerCraft)

	mod_EE : Available (EE2ClientV1.4.6.5.jar)

	mod_EnderStorage : Available (EnderStorage-Client 1.1.3.zip)

	mod_IC2NuclearControl : Available (IC2NuclearControl_client_v1.1.10b.zip)

	mod_ImmibisCore : Available (immibis-core_49.1.1_for_1.2.5-client.jar)

	mod_InvTweaks : Available (InvTweaks-1.41b-1.2.4.zip)

	mod_MAtmos_forModLoader : Available (MAtmos_packaged.zip)

	mod_ModularForceFieldSystem : Available (mffs_rev7_for_1.2.5-client.zip)

	mod_IC2_ChargingBench : Available (mod_chargingbench-client-1.95b-1.2.5-r1.zip)

	mod_CompactSolars : Available (mod_compactsolars-client-2.3.2.10.zip)

	mod_IronChest : Available (mod_ironchests-client-3.8.0.40.zip)

	mod_RedPowerCore : Available (RedPowerCore-2.0pr5b2.zip)

	mod_NetherOres : Available (NetherOres_Client_1.2.1.zip)

	mod_PowerConverters : Available (PowerConverters_Client_1.3.4.zip)

	mod_Railcraft : Available (Railcraft_Client_5.3.3.zip)

	mod_RedPowerControl : Available (RedPowerControl-2.0pr5b2.zip)

	mod_RedPowerLighting : Available (RedPowerLighting-2.0pr5b2.zip)

	mod_RedPowerLogic : Available (RedPowerLogic-2.0pr5b2.zip)

	mod_RedPowerWiring : Available (RedPowerWiring-2.0pr5b2.zip)

	mod_RedPowerWorld : Available (RedPowerWorld-2.0pr5b2.zip)

	mod_TubeStuff : Available (tubestuff_49.1.2_for_1.2.5-client.jar)

	Balkon's WeaponMod : Available (WeaponMod.zip)

	mod_WirelessRedstoneCore : Available (WR-CBE Core-Client 1.2.2.3.zip)

	mod_WirelessRedstoneAddons : Available (WR-CBE Addons-Client 1.2.2.3.zip)

	mod_WirelessRedstoneRedPower : Available (WR-CBE RedPower-Client 1.2.2.1.zip)

	mod_ImmiChunkLoaders : Available (zdimensional-anchor_rev3.2_for_1.2.5-client.jar)