---- Minecraft Crash Report ----
// Why did you do that?

Time: 21/01/14 20:38
Description: Exception in server tick loop

java.lang.NullPointerException: Exception in server tick loop
	at net.minecraft.item.ItemStack.func_77960_j(ItemStack.java:231)
	at net.minecraft.block.BlockChest.func_149749_a(BlockChest.java:365)
	at net.minecraft.world.chunk.Chunk.func_150807_a(Chunk.java:625)
	at net.minecraft.world.World.func_147465_d(World.java:472)
	at net.minecraft.world.World.func_147468_f(World.java:582)
	at net.minecraft.block.Block.onBlockExploded(Block.java:1711)
	at net.minecraft.world.Explosion.func_77279_a(Explosion.java:219)
	at net.minecraft.world.WorldServer.func_72885_a(WorldServer.java:924)
	at net.minecraft.world.World.func_72876_a(World.java:2433)
	at atomicstryker.battletowers.common.AS_TowerDestroyer.update(AS_TowerDestroyer.java:78)
	at atomicstryker.battletowers.common.ServerTickHandler.onTick(ServerTickHandler.java:33)
	at cpw.mods.fml.common.eventhandler.ASMEventHandler_8_ServerTickHandler_onTick_WorldTickEvent.invoke(.dynamic)
	at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:39)
	at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:108)
	at cpw.mods.fml.common.FMLCommonHandler.onPreWorldTick(FMLCommonHandler.java:263)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:641)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:568)
	at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:114)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:452)
	at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:705)


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

-- System Details --
Details:
	Minecraft Version: 1.7.2
	Operating System: Windows 8 (amd64) version 6.2
	Java Version: 1.7.0_51, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 415512464 bytes (396 MB) / 945291264 bytes (901 MB) up to 1908932608 bytes (1820 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G
	AABB Pool Size: 4341 (243096 bytes; 0 MB) allocated, 1 (56 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	FML: MCP v9.01-pre FML v7.2.48.998 Minecraft Forge 10.12.0.998 5 mods loaded, 5 mods active
	mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	FML{7.2.48.998} [Forge Mod Loader] (forge-1.7.2-10.12.0.998.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	Forge{10.12.0.998} [Minecraft Forge] (forge-1.7.2-10.12.0.998.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	BattleTowers{1.4.4} [Battle Towers] (BattleTowers-1.7.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	AS_UpdateCheck{1.1.4} [AtomicStryker Update Check Mod] (UpdateCheckerMod-1.7.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 10733 (601048 bytes; 0 MB) allocated, 10733 (601048 bytes; 0 MB) used
	Player Count: 1 / 8; [EntityPlayerMP['_noturnoO_'/216, l='New World', x=272,71, y=106,00, z=303,31]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Definitely; Client brand changed to 'fml,forge'