Startup crash - something to do with blockAlloy

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


-- Head --
Stacktrace:
at java.util.ArrayList.rangeCheck(Unknown Source)
at java.util.ArrayList.get(Unknown Source)
at net.minecraft.client.renderer.texture.TextureAtlasSprite.func_147965_a(TextureAtlasSprite.java:217)


-- Texture being stitched together --
Details:
Atlas path: textures/blocks
Sprite: TextureAtlasSprite{name='ic2:blockAlloy:0', frameCount=0, rotated=false, x=720, y=464, height=0, width=0, u0=0.7031348, u1=0.7031152, v0=0.90626955, v1=0.90623045}
Stacktrace:
at net.minecraft.client.renderer.texture.TextureMap.func_110571_b(TextureMap.java:358)
at net.minecraft.client.renderer.texture.TextureMap.func_110551_a(TextureMap.java:122)


-- Resource location being registered --
Details:
Resource location: minecraft:textures/atlas/blocks.png
Texture object class: net.minecraft.client.renderer.texture.TextureMap
Stacktrace:
at net.minecraft.client.renderer.texture.TextureManager.func_110579_a(TextureManager.java:94)
at net.minecraft.client.renderer.texture.TextureManager.func_110580_a(TextureManager.java:76)
at net.minecraft.client.renderer.texture.TextureManager.func_130088_a(TextureManager.java:63)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:523)


-- Initialization --
Details:
Stacktrace:
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:815)
at net.minecraft.client.main.Main.main(SourceFile:103)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)


-- System Details --
Details:
Minecraft Version: 1.7.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 333642552 bytes (318 MB) / 494206976 bytes (471 MB) up to 954466304 bytes (910 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.03 FML v7.2.204.1097 Minecraft Forge 10.12.1.1097 Optifine OptiFine_1.7.2_HD_U_D1 14 mods loaded, 14 mods active
mcp{9.03} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized
FML{7.2.204.1097} [Forge Mod Loader] (forge-1.7.2-10.12.1.1097.jar) Unloaded->Constructed->Pre-initialized
Forge{10.12.1.1097} [Minecraft Forge] (forge-1.7.2-10.12.1.1097.jar) Unloaded->Constructed->Pre-initialized
CodeChickenCore{1.0.0} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized
NotEnoughItems{1.0.1} [Not Enough Items] (NotEnoughItems-1.7.2-1.0.1-universal.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Core{6.0.13} [BuildCraft] (buildcraft-6.0.13.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Builders{6.0.13} [BC Builders] (buildcraft-6.0.13.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Energy{6.0.13} [BC Energy] (buildcraft-6.0.13.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Factory{6.0.13} [BC Factory] (buildcraft-6.0.13.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Transport{6.0.13} [BC Transport] (buildcraft-6.0.13.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Silicon{6.0.13} [BC Silicon] (buildcraft-6.0.13.jar) Unloaded->Constructed->Pre-initialized
IC2{2.1.478-experimental} [IndustrialCraft 2] (industrialcraft-2-2.1.478-experimental.jar) Unloaded->Constructed->Pre-initialized
MapWriter{2.1.0} [MapWriter] (MapWriter-1.7.2-2.1.0.jar) Unloaded->Constructed->Pre-initialized
Waila{1.5.2_1.7.2} [Waila] (Waila-1.5.2a_1.7.2.jar) Unloaded->Constructed->Pre-initialized
Launched Version: 1.7.2-Forge10.12.1.1097
LWJGL: 2.9.0
OpenGL: Intel(R) HD Graphics 3000 GL version 3.1.0 - Build 9.17.10.3062, Intel
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Packs: []
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
Anisotropic Filtering: Off (1)