So, I changed my binding on my pickaxe and now, everytime I try to change its head, my game crashes. Here's the crash report from my folder:

---- Minecraft Crash Report ----
// On the bright side, I bought you a teddy bear!

Time: 05/03/17 14:38
Description: Updating screen events

java.lang.ArrayIndexOutOfBoundsException: 0
at iguanaman.iguanatweakstconstruct.replacing.ReplacementLogic.reapplyRedstone(ReplacementLogic.java:345)
at iguanaman.iguanatweakstconstruct.replacing.ReplacementLogic.exchangeToolPart(ReplacementLogic.java:190)
at iguanaman.iguanatweakstconstruct.replacing.ModPartReplacement.modify(ModPartReplacement.java:183)
at tconstruct.library.crafting.ModifyBuilder.modifyItem(ModifyBuilder.java:34)
at tconstruct.tools.logic.ToolForgeLogic.buildTool(ToolForgeLogic.java:49)
at tconstruct.tools.logic.ToolStationLogic.func_70296_d(ToolStationLogic.java:65)
at net.minecraft.inventory.Slot.func_75218_e(Slot.java:83)
at net.minecraft.inventory.Slot.func_75215_d(Slot.java:78)
at net.minecraft.inventory.Container.func_75144_a(SourceFile:157)
at net.minecraft.client.multiplayer.PlayerControllerMP.func_78753_a(PlayerControllerMP.java:419)
at codechicken.nei.guihook.GuiContainerManager.handleSlotClick(GuiContainerManager.java:504)
at net.minecraft.client.gui.inventory.GuiContainer.func_146984_a(GuiContainer.java:638)
at net.minecraft.client.gui.inventory.GuiContainer.public_func_146984_a(GuiContainer.java)
at codechicken.nei.guihook.DefaultSlotClickHandler.callHandleMouseClick(DefaultSlotClickHandler.java)
at codechicken.nei.guihook.DefaultSlotClickHandler.handleSlotClick(DefaultSlotClickHandler.java:17)
at codechicken.nei.guihook.GuiContainerManager.handleMouseClick(GuiContainerManager.java:453)
at net.minecraft.client.gui.inventory.GuiContainer.managerHandleMouseClick(GuiContainer.java)
at net.minecraft.client.gui.inventory.GuiContainer.func_146286_b(GuiContainer.java:590)
at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:306)
at net.minecraft.client.gui.inventory.GuiContainer.func_146274_d(GuiContainer.java)
at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:268)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1640)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:973)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:898)
at net.minecraft.client.main.Main.main(SourceFile:148)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

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

-- Head --
Stacktrace:
at iguanaman.iguanatweakstconstruct.replacing.ReplacementLogic.reapplyRedstone(ReplacementLogic.java:345)
at iguanaman.iguanatweakstconstruct.replacing.ReplacementLogic.exchangeToolPart(ReplacementLogic.java:190)
at iguanaman.iguanatweakstconstruct.replacing.ModPartReplacement.modify(ModPartReplacement.java:183)
at tconstruct.library.crafting.ModifyBuilder.modifyItem(ModifyBuilder.java:34)
at tconstruct.tools.logic.ToolForgeLogic.buildTool(ToolForgeLogic.java:49)
at tconstruct.tools.logic.ToolStationLogic.func_70296_d(ToolStationLogic.java:65)
at net.minecraft.inventory.Slot.func_75218_e(Slot.java:83)
at net.minecraft.inventory.Slot.func_75215_d(Slot.java:78)
at net.minecraft.inventory.Container.func_75144_a(SourceFile:157)
at net.minecraft.client.multiplayer.PlayerControllerMP.func_78753_a(PlayerControllerMP.java:419)
at codechicken.nei.guihook.GuiContainerManager.handleSlotClick(GuiContainerManager.java:504)
at net.minecraft.client.gui.inventory.GuiContainer.func_146984_a(GuiContainer.java:638)
at net.minecraft.client.gui.inventory.GuiContainer.public_func_146984_a(GuiContainer.java)
at codechicken.nei.guihook.DefaultSlotClickHandler.callHandleMouseClick(DefaultSlotClickHandler.java)
at codechicken.nei.guihook.DefaultSlotClickHandler.handleSlotClick(DefaultSlotClickHandler.java:17)
at codechicken.nei.guihook.GuiContainerManager.handleMouseClick(GuiContainerManager.java:453)
at net.minecraft.client.gui.inventory.GuiContainer.managerHandleMouseClick(GuiContainer.java)
at net.minecraft.client.gui.inventory.GuiContainer.func_146286_b(GuiContainer.java:590)
at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:306)
at net.minecraft.client.gui.inventory.GuiContainer.func_146274_d(GuiContainer.java)
at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:268)

-- Affected screen --
Details:
Screen name: tconstruct.tools.gui.ToolForgeGui

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [EntityClientPlayerMP['Camila199222'/119, l='MpServer', x=-1458,06, y=65,62, z=2571,95]]
Chunk stats: MultiplayerChunkCache: 289, 289
Level seed: 0
Level generator: ID 04 - BIOMESOP, ver 0. Features enabled: false
Level generator options:
Level spawn location: World: (-789,64,718), Chunk: (at 11,4,14 in -50,44; contains blocks -800,0,704 to -785,255,719), Region: (-2,1; contains chunks -64,32 to -33,63, blocks -1024,0,512 to -513,255,1023)
Level time: 553799 game time, 837673 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: survival (ID 0). Hardcore: false. Cheats: false
Forced entities: 39 total; [EntityCow['Vaca'/128, l='MpServer', x=-1446,63, y=70,00, z=2617,50], EntitySheep['Ovelha'/129, l='MpServer', x=-1442,50, y=104,00, z=2622,50], EntityCow['Vaca'/130, l='MpServer', x=-1411,50, y=71,00, z=2602,19], EntitySheep['Ovelha'/131, l='MpServer', x=-1435,53, y=74,00, z=2621,66], EntityCow['Vaca'/132, l='MpServer', x=-1429,56, y=74,00, z=2615,22], EntitySheep['Ovelha'/133, l='MpServer', x=-1435,91, y=71,00, z=2608,94], EntityHorse['Cavalo'/134, l='MpServer', x=-1525,09, y=64,00, z=2570,03], EntityHorse['Cavalo'/135, l='MpServer', x=-1467,66, y=65,00, z=2507,00], EntitySheep['Ovelha'/136, l='MpServer', x=-1462,72, y=67,00, z=2632,88], EntityHorse['Cavalo'/137, l='MpServer', x=-1521,66, y=62,29, z=2556,47], EntityHorse['Cavalo'/138, l='MpServer', x=-1534,13, y=64,00, z=2552,97], EntityBat['Morcego'/139, l='MpServer', x=-1410,25, y=26,10, z=2524,66], EntityCow['Vaca'/140, l='MpServer', x=-1408,78, y=71,00, z=2611,28], EntityBat['Morcego'/141, l='MpServer', x=-1531,34, y=28,25, z=2539,25], EntityBat['Morcego'/142, l='MpServer', x=-1531,22, y=29,00, z=2539,31], EntitySheep['Ovelha'/143, l='MpServer', x=-1437,03, y=74,00, z=2629,03], EntitySheep['Ovelha'/144, l='MpServer', x=-1504,78, y=63,00, z=2637,53], EntityHorse['Cavalo'/145, l='MpServer', x=-1517,44, y=69,00, z=2508,00], EntityHorse['Cavalo'/146, l='MpServer', x=-1504,50, y=65,00, z=2511,94], EntitySheep['Ovelha'/148, l='MpServer', x=-1421,50, y=74,00, z=2630,19], EntitySheep['Ovelha'/149, l='MpServer', x=-1460,84, y=67,00, z=2646,88], EntitySheep['Ovelha'/151, l='MpServer', x=-1489,97, y=63,00, z=2651,94], EntityCow['Vaca'/152, l='MpServer', x=-1537,50, y=65,00, z=2547,50], EntitySheep['Ovelha'/155, l='MpServer', x=-1388,16, y=88,00, z=2581,06], EntityBat['Morcego'/157, l='MpServer', x=-1391,53, y=65,10, z=2531,75], EntitySheep['Ovelha'/158, l='MpServer', x=-1382,69, y=77,00, z=2603,78], EntityBat['Morcego'/159, l='MpServer', x=-1396,94, y=27,10, z=2506,13], EntitySheep['Ovelha'/160, l='MpServer', x=-1394,94, y=81,00, z=2632,91], EntitySheep['Ovelha'/161, l='MpServer', x=-1402,09, y=82,00, z=2629,09], EntityClientPlayerMP['Camila199222'/119, l='MpServer', x=-1458,06, y=65,62, z=2571,95], EntityBat['Morcego'/180, l='MpServer', x=-1382,26, y=26,82, z=2638,19], EntityBat['Morcego'/120, l='MpServer', x=-1452,94, y=28,10, z=2559,50], EntitySheep['Ovelha'/121, l='MpServer', x=-1501,63, y=63,00, z=2548,19], EntityBat['Morcego'/122, l='MpServer', x=-1431,29, y=47,11, z=2594,28], EntitySheep['Ovelha'/123, l='MpServer', x=-1492,88, y=64,00, z=2614,25], EntityHorse['Cavalo'/124, l='MpServer', x=-1505,19, y=61,78, z=2578,22], EntityHorse['Cavalo'/125, l='MpServer', x=-1514,03, y=63,00, z=2579,97], EntityHorse['Cavalo'/126, l='MpServer', x=-1513,00, y=66,00, z=2547,28], EntityHorse['Cavalo'/127, l='MpServer', x=-1509,09, y=64,00, z=2558,13]]
Retry entities: 0 total; []
Server brand: fml,forge
Server type: Integrated singleplayer server
Stacktrace:
at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:373)
at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2444)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:919)
at net.minecraft.client.main.Main.main(SourceFile:148)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 287326264 bytes (274 MB) / 735961088 bytes (701 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 95
FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1614 44 mods loaded, 44 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAAAA mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
UCHIJAAAA FML{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.4.1614-1.7.10.jar)
UCHIJAAAA Forge{10.13.4.1614} [Minecraft Forge] (forge-1.7.10-10.13.4.1614-1.7.10.jar)
UCHIJAAAA CodeChickenCore{1.0.7.47} [CodeChicken Core] (minecraft.jar)
UCHIJAAAA NotEnoughItems{1.0.5.120} [Not Enough Items] (NotEnoughItems-1.7.10-1.0.5.120-universal.jar)
UCHIJAAAA Baubles{1.0.1.10} [Baubles] (Baubles-1.7.10-1.0.1.10.jar)
UCHIJAAAA adventurebackpack{1.7.10-0.8b} [Adventure Backpack] (adventurebackpack-1.7.10-0.8c.jar)
UCHIJAAAA AgriCraft{1.7.10-1.5.0} [AgriCraft] (AgriCraft-1.7.10-1.5.0.jar)
UCHIJAAAA chisel{2.9.5.11} [Chisel] (Chisel-2.9.5.11.jar)
UCHIJAAAA BiomesOPlenty{2.1.0} [Biomes O' Plenty] (BiomesOPlenty-1.7.10-2.1.0.1019-universal.jar)
UCHIJAAAA Forestry{4.2.16.64} [Forestry for Minecraft] (forestry_1.7.10-4.2.16.64.jar)
UCHIJAAAA koresample{1.7.10-1.3.2} [Kore Sample] (KoreSample-1.7.10-1.3.2.jar)
UCHIJAAAA StorageDrawers{1.7.10-1.10.8} [Storage Drawers] (StorageDrawers-1.7.10-1.10.8.jar)
UCHIJAAAA dendrology{1.7.10-1.6.4} [Ancient Trees] (AncientTrees-1.7.10-1.6.4.jar)
UCHIJAAAA ArchitectureCraft{1.7.2} [ArchitectureCraft] (ArchitectureCraft-1.7.2-mc1.7.10.jar)
UCHIJAAAA betterbuilderswands{0.8.1} [Better Builder's Wands] (BetterBuildersWands-0.8.1-1.7.10r92+aec06c3.jar)
UCHIJAAAA Botania{r1.8-249} [Botania] (Botania r1.8-249.jar)
UCHIJAAAA CarpentersBlocks{3.3.8.1} [Carpenter's Blocks] (Carpenter's Blocks v3.3.8.1 - MC 1.7.10.jar)
UCHIJAAAA endercore{1.7.10-0.2.0.36_beta} [EnderCore] (EnderCore-1.7.10-0.2.0.36_beta.jar)
UCHIJAAAA fastleafdecay{1.4} [Fast Leaf Decay] (FastLeafDecay-1.7.10-1.4.jar)
UCHIJAAAA inventorytweaks{1.59-dev-152-cf6e263} [Inventory Tweaks] (InventoryTweaks-1.59-dev-152.jar)
UCHIJAAAA IronChest{6.0.60.741} [Iron Chest] (ironchest-1.7.10-6.0.60.741-universal.jar)
UCHIJAAAA Waila{1.5.10} [Waila] (Waila-1.5.10_1.7.10.jar)
UCHIJAAAA JABBA{1.2.2} [JABBA] (Jabba-1.2.2_1.7.10.jar)
UCHIJAAAA journeymap{5.1.4p1} [JourneyMap] (journeymap-1.7.10-5.1.4p1-unlimited.jar)
UCHIJAAAA Mantle{1.7.10-0.3.2.jenkins191} [Mantle] (Mantle-1.7.10-0.3.2b.jar)
UCHIJAAAA TConstruct{1.7.10-1.8.8.build988} [Tinkers' Construct] (TConstruct-1.7.10-1.8.8.jar)
UCHIJAAAA MagicBees{2.4.3} [Magic Bees] (magicbees-1.7.10-2.4.3.jar)
UCHIJAAAA NEIAddons{1.12.14.40} [NEI Addons] (neiaddons-1.12.14.40-mc1.7.10.jar)
UCHIJAAAA NEIAddons|Developer{1.12.14.40} [NEI Addons: Developer Tools] (neiaddons-1.12.14.40-mc1.7.10.jar)
UCHIJAAAA NEIAddons|AppEng{1.12.14.40} [NEI Addons: Applied Energistics 2] (neiaddons-1.12.14.40-mc1.7.10.jar)
UCHIJAAAA NEIAddons|Botany{1.12.14.40} [NEI Addons: Botany] (neiaddons-1.12.14.40-mc1.7.10.jar)
UCHIJAAAA NEIAddons|Forestry{1.12.14.40} [NEI Addons: Forestry] (neiaddons-1.12.14.40-mc1.7.10.jar)
UCHIJAAAA NEIAddons|CraftingTables{1.12.14.40} [NEI Addons: Crafting Tables] (neiaddons-1.12.14.40-mc1.7.10.jar)
UCHIJAAAA NEIAddons|ExNihilo{1.12.14.40} [NEI Addons: Ex Nihilo] (neiaddons-1.12.14.40-mc1.7.10.jar)
UCHIJAAAA neiintegration{1.1.2} [NEI Integration] (NEIIntegration-MC1.7.10-1.1.2.jar)
UCHIJAAAA rftl{1.7.10} [Rotten Flesh to Leather] (Rotten-Flesh-to-Leather-Mod-1.7.10.jar)
UCHIJAAAA StorageDrawersBop{1.7.10-1.1.1} [Storage Drawers: Biomes O' Plenty Pack] (StorageDrawers-BiomesOPlenty-1.7.10-1.1.1.jar)
UCHIJAAAA StorageDrawersForestry{1.7.10-1.1.2} [Storage Drawers: Forestry Pack] (StorageDrawers-Forestry-1.7.10-1.1.2.jar)
UCHIJAAAA TiCTooltips{1.2.5} [TiC Tooltips] (TiCTooltips-mc1.7.10-1.2.5.jar)
UCHIJAAAA WailaHarvestability{1.1.6} [Waila Harvestability] (WailaHarvestability-mc1.7.10-1.1.6.jar)
UCHIJAAAA wailaplugins{MC1.7.10-0.2.0-23} [WAILA Plugins] (WAILAPlugins-MC1.7.10-0.2.0-23.jar)
UCHIJAAAA YAFM{1.0.3} [Yet Another Food Mod] (Yet-Another-Food-Mod-1.7.10.jar)
UCHIJAAAA IguanaTweaksTConstruct{1.7.10-2.1.6.163} [Iguana Tinker Tweaks] (IguanaTinkerTweaks-1.7.10-2.1.6.jar)
GL info: ' Vendor: 'Intel' Version: '4.4.0 - Build 20.19.15.4549' Renderer: 'Intel(R) HD Graphics 5500'
Mantle Environment: Environment healthy.
TConstruct Environment: Environment healthy.
Chisel: Errors like "[FML]: Unable to lookup ..." are NOT the cause of this crash. You can safely ignore these errors. And update forge while you're at it.
Launched Version: 1.7.10-Forge10.13.4.1614-1.7.10
LWJGL: 2.9.1
OpenGL: Intel(R) HD Graphics 5500 GL version 4.4.0 - Build 20.19.15.4549, Intel
GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Packs: []
Current Language: Português (Brasil)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Anisotropic Filtering: Off (1)