Random timer crash

[Mortimier]

I get this error message whenever the timer passes 10 seconds. It does a "saving chunks" screen, then brings this up:

Spoiler

33 mods loaded
Optifine OptiFine_1.2.5_HD_S_C6
Minecraft Forge 3.3.7.135
FML v2.2.48.135
Forge Mod Loader version 2.2.48.135 for Minecraft 1.2.5
mod_CodeChickenCore : Available (minecraft.jar)
mod_MinecraftForge : Available (minecraft.jar)
mod_NotEnoughItems : Available (minecraft.jar)
mod_IC2 : Available (industrialcraft-2-client_1.95b.jar)
mod_IC2AdvancedMachines : Available (AdvancedMachines_4.1_client.zip)
mod_BuildCraftCore : Available (buildcraft-client-A-core-3.1.5.zip)
mod_BuildCraftBuilders : Available (buildcraft-client-B-builders-3.1.5.zip)
mod_BuildCraftEnergy : Available (buildcraft-client-B-energy-3.1.5.zip)
mod_BuildCraftFactory : Available (buildcraft-client-B-factory-3.1.5.zip)
mod_BuildCraftTransport : Available (buildcraft-client-B-transport-3.1.5.zip)
mod_BuildCraftSilicon : Available (buildcraft-client-C-silicon-3.1.5.zip)
mod_EE : Available (EE2ClientV1.4.6.1.jar)
mod_EnderStorage : Available (EnderStorage-Client 1.1.1.zip)
mod_Forestry : Available (forestry-client-A-1.4.4.5-FTB.jar)
mod_BuildCraftZFP : Available (forestry-client-A-1.4.4.5-FTB.jar)
mod_InvTweaks : Available (InvTweaks-1.41b-1.2.4.zip)
mod_LogisticsPipes : Available (LogisticsPipes-BC3-0.2.5B.zip)
mod_CompactSolars : Available (mod_compactsolars-client-2.3.2.10.zip)
mod_IronChest : Available (mod_ironchests-client-3.4.2.28.zip)
mod_MusicBox : Available (mod_MusicBox.zip)
mod_NoGen : Available (mod_YUNoMakeGoodMap (1).zip)
mod_PortalGun : Available (portalgun)
mod_RedPowerControl : Available (RedPowerControl-2.0pr5b2.zip)
mod_RedPowerCore : Available (RedPowerCore-2.0pr5b2.zip)
mod_RedPowerLighting : Available (RedPowerLighting-2.0pr5b2.zip)
mod_RedPowerLogic : Available (RedPowerLogic-2.0pr5b2.zip)
mod_RedPowerMachine : Available (RedPowerMachine-2.0pr5b2.zip)
mod_RedPowerWiring : Available (RedPowerWiring-2.0pr5b2.zip)
mod_RedPowerWorld : Available (RedPowerWorld-2.0pr5b2.zip)
mod_Timer : Available (timer)
mod_WirelessRedstoneCore : Available (WR-CBE Core-Client 1.2.2.zip)
mod_WirelessRedstoneAddons : Available (WR-CBE Addons-Client 1.2.2.zip)
mod_WirelessRedstoneRedPower : Available (WR-CBE RedPower-Client 1.2.2.zip)


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

Minecraft has stopped running because it encountered a problem.




--- BEGIN ERROR REPORT 5f431e79 --------
Generated 9/2/12 11:08 PM

Minecraft: Minecraft 1.2.5
OS: Windows 7 (amd64) version 6.1
Java: 1.6.0_22, Sun Microsystems Inc.
VM: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
LWJGL: 2.8.3
OpenGL: Radeon (TM) HD 6470M version 4.1.10362 Compatibility Profile Context, ATI Technologies Inc.

java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.Integer
at Reflector.callInt(Reflector.java:199)
at acq.c(EntityLiving.java:972)
at acq.a(EntityLiving.java:835)
at yy.a(SourceFile:42)
at nn.B(Entity.java:445)
at acq.B(EntityLiving.java:480)
at nn.J_(Entity.java:349)
at acq.J_(EntityLiving.java:674)
at yy.J_(SourceFile:30)
at xd.a(World.java:2194)
at xd.f(World.java:2165)
at xd.n(World.java:2047)
at net.minecraft.client.Minecraft.k(Minecraft.java:1867)
at net.minecraft.client.Minecraft.x(Minecraft.java:822)
at net.minecraft.client.Minecraft.run(Minecraft.java:750)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT aba0f139 ----------

Please tell me how to fix this.

Thanks
--Mortimier

 

[Fuubar]

That crash is due to a problem with optifine C6. There are a few options:

Get the C2 version of optifine; it should work with the FTB pack as-is.

Or update forge to 3.3.8.152, update java, and update lwjgl. It could be an incompatibility wither any of those three, i'm not sure. I am not sure if updating forge will cause problems with the other mods (it shouldn't), but I recommend updating java and the light weight java games library first.