Hello, after putting a Control Rod without a Yellorium Fuel Rod under it and completing it with reactor casing, the game crashed and keeps crashing when I try to load the world. And there were a few redstone energy conduits connected to it.
Here's the error log:

--- BEGIN ERROR REPORT 6c5e1719 --------
Full report at:
C:\Users*\AppData\Roaming.technic\lapitos-galacticraft\crash-reports\crash-2013-06-23_16.19.06-client.txt
Please show that file to Mojang, NOT just this screen!

Generated 23/06/13 16:19

-- Head --
Stacktrace:
at erogenousbeef.bigreactors.client.renderer.RendererControlRod.func_76894_a(RendererControlRod.java:145)

-- Tile Entity Details --
Details:
Name: BRReactorControlRod // erogenousbeef.bigreactors.common.tileentity.TileEntityReactorControlRod
Block type: ID #1753 (tile.blockReactorControlRod // erogenousbeef.bigreactors.common.block.BlockReactorControlRod)
Block data value: 0 / 0x0 / 0b0000
Block location: World: (215,70,236), Chunk: (at 7,4,12 in 13,14; contains blocks 208,0,224 to 223,255,239), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Actual block type: ID #1753 (tile.blockReactorControlRod // erogenousbeef.bigreactors.common.block.BlockReactorControlRod)
Actual block data value: 0 / 0x0 / 0b0000
Stacktrace:
at net.minecraft.client.renderer.tileentity.TileEntityRenderer.func_76949_a(SourceFile:107)
at net.minecraft.client.renderer.tileentity.TileEntityRenderer.func_76950_a(SourceFile:99)
at net.minecraft.client.renderer.RenderGlobal.func_72713_a(RenderGlobal.java:520)
at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1150)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [GCCorePlayerSP['Lapito'/378, l='MpServer', x=215,44, y=73,44, z=233,93]]
Chunk stats: MultiplayerChunkCache: 441
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (156,64,256), Chunk: (at 12,4,0 in 9,16; contains blocks 144,0,256 to 159,255,271), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 15473 game time, 15473 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
Forced entities: 106 total; [EntityCreeper['Creeper'/275, l='MpServer', x=264,00, y=70,00, z=305,86], EntitySkeleton['Skeleton'/274, l='MpServer', x=267,84, y=63,00, z=280,66], EntitySkeleton['Skeleton'/273, l='MpServer', x=271,54, y=66,00, z=240,50], EntityZombie['Zombie'/272, l='MpServer', x=262,50, y=66,00, z=239,50], EntityZombie['Zombie'/4, l='MpServer', x=201,44, y=38,00, z=238,88], EntityCreeper['Creeper'/283, l='MpServer', x=286,50, y=69,00, z=160,50], EntitySkeleton['Skeleton'/281, l='MpServer', x=280,28, y=28,00, z=155,00], EntitySpider['Spider'/287, l='MpServer', x=285,50, y=69,00, z=189,53], EntitySpider['Spider'/286, l='MpServer', x=276,59, y=68,00, z=180,19], EntityZombie['Zombie'/285, l='MpServer', x=281,46, y=68,50, z=178,76], EntityCreeper['Creeper'/284, l='MpServer', x=287,31, y=69,00, z=166,00], EntitySheep['Sheep'/270, l='MpServer', x=269,06, y=67,00, z=196,06], EntitySheep['Sheep'/271, l='MpServer', x=269,72, y=67,00, z=194,44], EntitySheep['Sheep'/269, l='MpServer', x=269,09, y=67,00, z=185,74], EntitySheep['Sheep'/309, l='MpServer', x=292,50, y=68,00, z=241,22], EntitySheep['Sheep'/311, l='MpServer', x=291,38, y=67,00, z=254,47], EntitySheep['Sheep'/310, l='MpServer', x=292,50, y=68,00, z=242,81], EntityCreeper['Creeper'/288, l='MpServer', x=284,00, y=69,00, z=191,97], EntitySheep['Sheep'/289, l='MpServer', x=274,67, y=67,00, z=191,08], EntitySkeleton['Skeleton'/290, l='MpServer', x=279,66, y=67,00, z=233,66], EntitySkeleton['Skeleton'/291, l='MpServer', x=279,50, y=67,00, z=241,50], EntityZombie['Zombie'/292, l='MpServer', x=287,50, y=67,00, z=298,50], EntityZombie['Zombie'/293, l='MpServer', x=286,50, y=67,00, z=299,50], EntityCreeper['Creeper'/294, l='MpServer', x=277,50, y=67,00, z=300,50], EntitySheep['Sheep'/137, l='MpServer', x=140,19, y=73,00, z=210,81], EntitySheep['Sheep'/136, l='MpServer', x=141,65, y=73,25, z=208,52], EntitySheep['Sheep'/138, l='MpServer', x=138,50, y=74,00, z=209,50], EntitySheep['Sheep'/143, l='MpServer', x=142,53, y=80,00, z=286,59], EntitySheep['Sheep'/142, l='MpServer', x=143,38, y=80,00, z=285,38], EntitySheep['Sheep'/131, l='MpServer', x=141,16, y=80,00, z=159,91], EntityZombie['Zombie'/133, l='MpServer', x=138,50, y=74,00, z=169,50], EntitySheep['Sheep'/132, l='MpServer', x=140,50, y=81,00, z=154,59], EntitySheep['Sheep'/135, l='MpServer', x=136,56, y=73,00, z=196,25], EntitySheep['Sheep'/155, l='MpServer', x=147,50, y=81,00, z=158,50], EntitySheep['Sheep'/156, l='MpServer', x=147,50, y=80,00, z=160,50], GCCorePlayerSP['Lapito'/378, l='MpServer', x=215,44, y=73,44, z=233,93], EntitySheep['Sheep'/157, l='MpServer', x=147,84, y=71,00, z=259,94], EntitySheep['Sheep'/158, l='MpServer', x=149,47, y=70,00, z=262,19], EntitySheep['Sheep'/159, l='MpServer', x=149,50, y=70,00, z=260,78], EntityCow['Cow'/146, l='MpServer', x=143,22, y=79,00, z=288,34], EntitySheep['Sheep'/169, l='MpServer', x=144,50, y=80,00, z=284,41], EntityPig['Pig'/168, l='MpServer', x=147,53, y=78,00, z=283,53], EntityCow['Cow'/163, l='MpServer', x=149,38, y=79,00, z=281,03], EntityCow['Cow'/162, l='MpServer', x=149,50, y=79,00, z=279,88], EntitySheep['Sheep'/161, l='MpServer', x=148,63, y=79,00, z=287,22], EntitySheep['Sheep'/160, l='MpServer', x=149,50, y=70,00, z=259,47], EntityPig['Pig'/167, l='MpServer', x=145,55, y=75,59, z=282,45], EntityPig['Pig'/166, l='MpServer', x=146,52, y=75,92, z=281,00], EntityPig['Pig'/165, l='MpServer', x=146,06, y=78,00, z=282,94], EntityCow['Cow'/164, l='MpServer', x=150,16, y=79,00, z=282,22], EntitySquid['Squid'/187, l='MpServer', x=174,27, y=58,00, z=170,17], EntitySkeleton['Skeleton'/190, l='MpServer', x=170,50, y=70,00, z=196,50], EntityBat['Bat'/191, l='MpServer', x=173,66, y=35,10, z=313,72], EntitySpider['Spider'/188, l='MpServer', x=174,44, y=70,00, z=175,28], EntityCreeper['Creeper'/189, l='MpServer', x=169,50, y=71,00, z=178,50], EntityBlock['unknown'/478, l='MpServer', x=206,45, y=71,45, z=223,50], EntityBlock['unknown'/479, l='MpServer', x=196,50, y=67,45, z=233,45], EntityBlock['unknown'/476, l='MpServer', x=206,45, y=67,45, z=223,50], EntityBlock['unknown'/477, l='MpServer', x=196,45, y=71,45, z=223,50], EntityBlock['unknown'/474, l='MpServer', x=196,50, y=71,45, z=233,45], EntityBlock['unknown'/475, l='MpServer', x=196,45, y=67,45, z=223,50], EntityBlock['unknown'/472, l='MpServer', x=196,45, y=67,50, z=233,45], EntityBlock['unknown'/473, l='MpServer', x=206,45, y=67,50, z=233,45], EntityZombie['Zombie'/197, l='MpServer', x=186,95, y=70,00, z=229,21], EntityBlock['unknown'/470, l='MpServer', x=206,45, y=67,50, z=223,45], EntityBlock['unknown'/471, l='MpServer', x=196,50, y=67,45, z=233,45], EntityEnderman['Enderman'/196, l='MpServer', x=181,75, y=66,00, z=180,28], EntityBlock['unknown'/468, l='MpServer', x=196,45, y=67,50, z=223,45], EntitySpider['Spider'/199, l='MpServer', x=187,72, y=74,00, z=289,00], EntityCreeper['Creeper'/198, l='MpServer', x=190,50, y=38,00, z=272,50], EntityBlock['unknown'/469, l='MpServer', x=196,50, y=71,45, z=223,45], EntityBlock['unknown'/467, l='MpServer', x=196,50, y=67,45, z=223,45], EntityItem['item.item.seeds'/195, l='MpServer', x=178,56, y=68,13, z=177,75], EntitySkeleton['Skeleton'/223, l='MpServer', x=219,50, y=68,00, z=154,50], EntityBat['Bat'/455, l='MpServer', x=209,18, y=31,36, z=212,97], EntityBat['Bat'/212, l='MpServer', x=207,80, y=30,42, z=217,72], EntityBat['Bat'/213, l='MpServer', x=207,45, y=31,24, z=219,71], EntityBat['Bat'/208, l='MpServer', x=193,37, y=25,99, z=185,80], EntitySkeleton['Skeleton'/209, l='MpServer', x=202,50, y=66,00, z=180,50], EntitySkeleton['Skeleton'/210, l='MpServer', x=204,94, y=67,00, z=182,84], EntityZombie['Zombie'/211, l='MpServer', x=204,69, y=66,00, z=198,49], EntityCreeper['Creeper'/239, l='MpServer', x=238,50, y=29,00, z=223,50], EntitySpider['Spider'/230, l='MpServer', x=215,50, y=58,00, z=291,50], EntityZombie['Zombie'/229, l='MpServer', x=221,47, y=25,00, z=302,97], EntitySkeleton['Skeleton'/228, l='MpServer', x=223,06, y=67,00, z=285,44], EntitySkeleton['Skeleton'/227, l='MpServer', x=209,25, y=65,00, z=204,31], EntitySpider['Spider'/226, l='MpServer', x=207,29, y=66,00, z=197,29], EntityCreeper['Creeper'/225, l='MpServer', x=213,50, y=30,00, z=201,50], EntitySpider['Spider'/224, l='MpServer', x=217,00, y=67,00, z=171,49], EntitySpider['Spider'/254, l='MpServer', x=240,47, y=69,59, z=277,77], EntityZombie['Zombie'/252, l='MpServer', x=245,20, y=64,00, z=233,20], EntityCreeper['Creeper'/253, l='MpServer', x=249,50, y=67,00, z=279,50], EntityBlock['unknown'/489, l='MpServer', x=196,45, y=71,45, z=233,50], EntityBlock['unknown'/488, l='MpServer', x=206,45, y=67,45, z=233,50], EntityBlock['unknown'/490, l='MpServer', x=206,45, y=71,45, z=233,50], EntityBlock['unknown'/485, l='MpServer', x=206,45, y=67,50, z=243,45], EntityBlock['unknown'/484, l='MpServer', x=196,45, y=67,50, z=243,45], EntityBlock['unknown'/487, l='MpServer', x=196,45, y=67,45, z=233,50], EntityBlock['unknown'/486, l='MpServer', x=196,50, y=71,45, z=243,45], EntityBlock['unknown'/481, l='MpServer', x=196,50, y=71,45, z=233,45], EntitySkeleton['Skeleton'/242, l='MpServer', x=230,50, y=67,00, z=290,50], EntityBlock['unknown'/480, l='MpServer', x=196,45, y=67,50, z=233,45], EntitySkeleton['Skeleton'/240, l='MpServer', x=233,50, y=46,00, z=209,50], EntityBlock['unknown'/483, l='MpServer', x=196,50, y=67,45, z=243,45], EntityBat['Bat'/241, l='MpServer', x=236,90, y=32,94, z=218,61], EntityBlock['unknown'/482, l='MpServer', x=206,45, y=67,50, z=233,45]]
Retry entities: 0 total; []
Stacktrace:
at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:441)
at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2414)
at net.minecraft.client.Minecraft.run(Minecraft.java:776)
at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
Minecraft Version: 1.5.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_17, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 219598784 bytes (209 MB) / 815529984 bytes (777 MB) up to 1908932608 bytes (1820 MB)
JVM Flags: 1 total; -Xmx2048m
AABB Pool Size: 11658 (652848 bytes; 0 MB) allocated, 1225 (68600 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 1, tcache: 0, allocated: 3, tallocated: 63
FML: MCP v7.51 FML v5.2.21.726 Minecraft Forge 7.8.0.726 34 mods loaded, 34 mods active
mcp{7.44} Minecraft Coder Pack Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{5.2.21.726} Forge Mod Loader Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{7.8.0.726} Minecraft Forge Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CodeChickenCore{0.8.6.15} CodeChicken Core Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CoFHCore{1.5.2.2} CoFH Core Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NotEnoughItems{1.5.2.25} Not Enough Items Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_bspkrsCore{v2.07(1.5.2)} bspkrsCore Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TreeCapitator{Forge 1.5.2.r01} TreeCapitator Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CoFHNetwork{1.5.2.2} CoFHNetwork Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CoFHWorld{1.5.2.2} CoFHWorld Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
GalacticraftCore{0.1.35} Galacticraft Core Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_ReiMinimap{v3.3_06 [1.5.2]} mod_ReiMinimap Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AtomicScience{0.5.3} Atomic Science Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Mekanism{5.5.6} Mekanism Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ThermalExpansion{2.4.3.0} Thermal Expansion Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BigReactors{0.1.9A} Big Reactors Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Core{3.6.0} BuildCraft Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Builders{3.6.0} BC Builders Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Energy{3.6.0} BC Energy Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Factory{3.6.0} BC Factory Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Transport{3.6.0} BC Transport Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Silicon{3.6.0} BC Silicon Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ICBM|Contraption{1.2.0} ICBM Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ElectricExpansion{2.3.0.51} Electric Expansion Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ICBM|Sentry{1.2.0} ICBM Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ICBM|Explosion{1.2.0} ICBM Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
inventorytweaks{1.54b} Inventory Tweaks Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MekanismGenerators{5.5.6} MekanismGenerators Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MekanismTools{5.5.6} MekanismTools Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MFFS{3.0.2} Modular Force Field System Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mmmPowersuits{0.7.0-534} MachineMuse's Modular Powersuits Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NEIPlugins{1.0.9.2} NEI Plugins Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Railcraft{7.2.1.0} Railcraft Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
StevesCarts{2.0.0.a119} Steve's Carts Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
LWJGL: 2.4.2
OpenGL: GeForce GT 240/PCIe/SSE2 GL version 3.3.0, NVIDIA Corporation
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: 274 (15344 bytes; 0 MB) allocated, 274 (15344 bytes; 0 MB) used

java.lang.ArrayIndexOutOfBoundsException: 2147483647
at erogenousbeef.bigreactors.client.renderer.RendererControlRod.func_76894_a(RendererControlRod.java:145)
at net.minecraft.client.renderer.tileentity.TileEntityRenderer.func_76949_a(SourceFile:107)
at net.minecraft.client.renderer.tileentity.TileEntityRenderer.func_76950_a(SourceFile:99)
at net.minecraft.client.renderer.RenderGlobal.func_72713_a(RenderGlobal.java:520)
at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1150)
at net.minecraft.client.renderer.EntityRenderer.func_78480_b(EntityRenderer.java:991)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:871)
at net.minecraft.client.Minecraft.run(Minecraft.java:760)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 3cbdf794 ----------

That's not so much a bug as you broke it (the control Needs a fuel rod to function) although a fallback would probably be a good idea in the event that someone does this again in the future (instead of a crash just not functioning possibly since it being in a crash loop means he can't even fix it).

Ooh that's nasty. The reactor should fail to validate if there's no fuel rods, and the renderer shouldn't crash as well. I'll fix this ASAP.

Thanks for the report!

This is fixed in 0.1.10A, which is now out.