Support Request: Crash on Mojang Screen

Mods loaded: 7
ModLoader Beta 1.8.1
mod_BuildCraftCore 2.2.5
mod_BuildCraftBuilders 2.2.5
mod_BuildCraftEnergy 2.2.5
mod_BuildCraftFactory 2.2.5
mod_BuildCraftTransport 2.2.5
mod_EE 1.8.1

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

Minecraft has stopped running because it encountered a problem.

If you wish to report this, please copy this entire text and email it to support@mojang.com.
Please include a description of what you did when the error occured.

--- BEGIN ERROR REPORT 6bbbebd --------
Generated 11/6/11 1:22 PM

Minecraft: Minecraft Beta 1.8.1
OS: Windows 7 (x86) version 6.1
Java: 1.6.0_23, Sun Microsystems Inc.
VM: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc.
LWJGL: 2.4.2
OpenGL: Intel(R) HD Graphics version 2.1.0 - Build 8.15.10.2104, Intel

java.lang.ExceptionInInitializerError
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at ModLoader.addMod(ModLoader.java:275)
at ModLoader.readFromModFolder(ModLoader.java:1179)
at ModLoader.init(ModLoader.java:824)
at ModLoader.AddAllRenderers(ModLoader.java:186)
at aam.<init>(aam.java:61)
at aam.<clinit>(aam.java:10)
at net.minecraft.client.Minecraft.a(SourceFile:259)
at net.minecraft.client.Minecraft.run(SourceFile:629)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 399
at lr.<init>(Block.java:49)
at zt.<init>(BlockContainer.java:16)
at ic2.platform.BlockContainerCommon.<init>(BlockContainerCommon.java:8)
at ic2.common.BlockMultiID.<init>(BlockMultiID.java:34)
at ic2.common.BlockMachine.<init>(BlockMachine.java:48)
at mod_IC2.<clinit>(mod_IC2.java:34)
... 15 more
--- END ERROR REPORT 3cdf745 ----------