[NullPointerException when I open Alchemy Bag]

Title: NullPointerException when I open Alchemy Bag

Version: 3.1.2

OS: Windows 7 Professional 64-bit

Java Version: 1.7

Description of Problem:

Whenever I open up my black, and only black, Alchemy Bag, my client crashes and I get a 'Connection Lost Internal exception: java.lang.NullPointerException' error. I've been using this bag forever with no problems. Only thing that's changed between the last time it worked and now is I messed with a few config options in IC2 but, I've reverted them back. I know just deleting my alch.bag will fix it, but I had a lot of valuable stuff in there and I rather not go through NEI cheats to get it all back.

Error Messages:

Connection Lost Internal exception: java.lang.NullPointerException

Error Log:

2012-10-09 13:45:34 [iNFO] Forge Mod Loader load complete, 47 mods loaded

2012-10-09 13:45:42 [FINER] Registered texture override 239 (239) on TextureAnimFX (0)

2012-10-09 13:45:42 [FINER] Registered texture override 255 (255) on TextureAnimFX (0)

2012-10-09 13:45:42 [FINER] Registered texture override 4 (4) on TextureComputerFX (73)

2012-10-09 13:45:42 [FINER] Registered texture override 5 (5) on Portal_TextureAnimation (56)

2012-10-09 13:45:42 [FINER] Registered texture override 102 (102) on /gui/items.png (219)

2012-10-09 13:45:44 [FINER] Railcraft IC2 Module {0}: IC2 Detected, creating MFE Cart and Energy Loader recipes.

2012-10-09 13:45:44 [FINE] [EE2] Loaded EE2-IC2 Addon

2012-10-09 13:45:44 [FINE] [EE2] Loaded EE2-IC2 Addon

2012-10-09 13:45:44 [FINE] [EE2] Loaded EE2-IC2 Addon

2012-10-09 13:45:44 [FINE] [EE2] Loaded EE2-IC2 Addon

2012-10-09 13:45:44 [FINE] [EE2] Loaded EE2-RP2 Core Addon

2012-10-09 13:45:44 [FINE] [EE2] Loaded EE2-RP2 Core Addon

2012-10-09 13:45:44 [FINE] [EE2] Loaded EE2-RP2 World Addon

2012-10-09 13:45:44 [FINE] [EE2] Loaded EE2-Forestry Addon

2012-10-09 13:45:45 [WARNING] Received a TileEntityData packet for a location that did not have a TileEntity: (1008, 29, -985) 1: 52, 0, 0

2012-10-09 13:45:52 [WARNING] Received a TileEntityData packet for a location that did not have a TileEntity: (1008, 29, -985) 1: 52, 0, 0

2012-10-09 13:45:54 [WARNING] Received a TileEntityData packet for a location that did not have a TileEntity: (1040, 55, -901) 1: 52, 0, 0

2012-10-09 13:46:38 [WARNING] Received a TileEntityData packet for a location that did not have a TileEntity: (758, 16, -784) 1: 59, 0, 0