---- Minecraft Crash Report ----

WARNING: coremods are present:
  Inventory Tweaks Coremod (InventoryTweaks-1.62+beta.86.jar)
  IC2core (industrialcraft-2-2.7.9-ex111.jar)
Contact their authors BEFORE contacting forge

// Quite honestly, I wouldn't worry myself about that.

Time: 5/4/17 12:38 PM
Description: Exception in server tick loop

java.lang.NullPointerException: Exception in server tick loop
	at net.minecraft.enchantment.EnchantmentHelper.func_77506_a(EnchantmentHelper.java:35)
	at net.minecraft.block.Block.func_180657_a(Block.java:720)
	at ic2.core.block.wiring.TileEntityLuminator.checkPlacement(TileEntityLuminator.java:126)
	at ic2.core.block.wiring.TileEntityLuminator.access$000(TileEntityLuminator.java:39)
	at ic2.core.block.wiring.TileEntityLuminator$1.onTick(TileEntityLuminator.java:71)
	at ic2.core.TickHandler.processUpdates(TickHandler.java:175)
	at ic2.core.TickHandler.onWorldTick(TickHandler.java:58)
	at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_12_TickHandler_onWorldTick_WorldTickEvent.invoke(.dynamic)
	at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
	at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:185)
	at net.minecraftforge.fml.common.FMLCommonHandler.onPreWorldTick(FMLCommonHandler.java:282)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:705)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:624)
	at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:240)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:482)
	at java.lang.Thread.run(Unknown Source)


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

-- System Details --
Details:
	Minecraft Version: 1.11.2
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.8.0_131, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 274945888 bytes (262 MB) / 642215936 bytes (612 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
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	FML: MCP 9.38 Powered by Forge 13.20.0.2294 Optifine OptiFine_1.11.2_HD_U_B5 11 mods loaded, 11 mods active
	States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
	UCHIJAAAA	minecraft{1.11.2} [Minecraft] (minecraft.jar) 
	UCHIJAAAA	mcp{9.19} [Minecraft Coder Pack] (minecraft.jar) 
	UCHIJAAAA	FML{8.0.99.99} [Forge Mod Loader] (forge-1.11.2-13.20.0.2294.jar) 
	UCHIJAAAA	forge{13.20.0.2294} [Minecraft Forge] (forge-1.11.2-13.20.0.2294.jar) 
	UCHIJAAAA	mercurius_updater{1.0} [mercurius_updater] (MercuriusUpdater-1.11.2.jar) 
	UCHIJAAAA	grapplemod{1.11-v9} [Grappling hook mod] (grapplemod-1.11-v9.jar) 
	UCHIJAAAA	ic2{2.7.9-ex111} [IndustrialCraft 2] (industrialcraft-2-2.7.9-ex111.jar) 
	UCHIJAAAA	inventorytweaks{1.62+beta.86.e69c6bf} [Inventory Tweaks] (InventoryTweaks-1.62+beta.86.jar) 
	UCHIJAAAA	treechopper{1.1.2} [Tree Chopper] (TreeChopper-1.11.2-1.1.2.jar) 
	UCHIJAAAA	xaerominimap{1.12.7} [Xaero's Minimap] (Xaeros_Minimap_1.12.7_Forge_1.11.jar) 
	UCHIJAAAA	xaeroworldmap{1.8.1} [Xaero's World Map] (XaerosWorldMap_b1.8.1_Forge_1.11.jar) 
	Loaded coremods (and transformers): 
Inventory Tweaks Coremod (InventoryTweaks-1.62+beta.86.jar)
  invtweaks.forge.asm.ContainerTransformer
IC2core (industrialcraft-2-2.7.9-ex111.jar)
  
	GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [EntityPlayerMP['Piotro005'/218, l='New World', x=-337.70, y=127.00, z=-77.51]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Definitely; Client brand changed to 'fml,forge'
	OptiFine Version: OptiFine_1.11.2_HD_U_B5
	Render Distance Chunks: 8
	Mipmaps: 4
	Anisotropic Filtering: 1
	Antialiasing: 0
	Multitexture: false
	Shaders: null
	OpenGlVersion: 4.2.11986 Compatibility Profile Context
	OpenGlRenderer: ATI Radeon HD 5450
	OpenGlVendor: ATI Technologies Inc.
	CpuCount: 2