Crash when using Power fist on non Player Entity

[NimmerNeko]

Whenever i punch something with the power fist the client crashes. Players are fine though.

---- Minecraft Crash Report ----
// Daisy, daisy...

Time: 20.09.14 11:30
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
at flaxbeard.steamcraft.handler.SteamcraftEventHandler.drainSteam(SteamcraftEventHandler.java:919)
at flaxbeard.steamcraft.handler.SteamcraftEventHandler.handleFirePunch(SteamcraftEventHandler.java:703)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_21_SteamcraftEventHandler_handleFirePunch_LivingAttackEvent.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:51)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:122)
at net.minecraftforge.common.ForgeHooks.onLivingAttack(ForgeHooks.java:280)
at net.minecraft.entity.EntityLivingBase.func_70097_a(EntityLivingBase.java:735)
at net.minecraft.entity.passive.EntityAnimal.func_70097_a(SourceFile:145)
at net.minecraft.entity.player.EntityPlayer.func_71059_n(EntityPlayer.java:1232)
at net.minecraft.client.multiplayer.PlayerControllerMP.func_78764_a(PlayerControllerMP.java:406)
at net.minecraft.client.Minecraft.func_147116_af(Minecraft.java:1382)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1937)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:962)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:887)
at net.minecraft.client.main.Main.main(SourceFile:148)
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)

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

-- Head --
Stacktrace:
at flaxbeard.steamcraft.handler.SteamcraftEventHandler.drainSteam(SteamcraftEventHandler.java:919)
at flaxbeard.steamcraft.handler.SteamcraftEventHandler.handleFirePunch(SteamcraftEventHandler.java:703)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_21_SteamcraftEventHandler_handleFirePunch_LivingAttackEvent.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:51)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:122)
at net.minecraftforge.common.ForgeHooks.onLivingAttack(ForgeHooks.java:280)
at net.minecraft.entity.EntityLivingBase.func_70097_a(EntityLivingBase.java:735)
at net.minecraft.entity.passive.EntityAnimal.func_70097_a(SourceFile:145)
at net.minecraft.entity.player.EntityPlayer.func_71059_n(EntityPlayer.java:1232)
at net.minecraft.client.multiplayer.PlayerControllerMP.func_78764_a(PlayerControllerMP.java:406)
at net.minecraft.client.Minecraft.func_147116_af(Minecraft.java:1382)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [EntityClientPlayerMP['Mii1128'/190, l='MpServer', x=91,76, y=72,62, z=181,43]]
Chunk stats: MultiplayerChunkCache: 288, 288
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (123,64,210), Chunk: (at 11,4,2 in 7,13; contains blocks 112,0,208 to 127,255,223), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 1279 game time, 1279 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: 109 total; [EntityCow['Cow'/17, l='MpServer', x=53,53, y=69,00, z=244,09], EntityCow['Cow'/19, l='MpServer', x=52,03, y=69,00, z=242,19], EntityCow['Cow'/18, l='MpServer', x=51,50, y=69,00, z=240,50], EntityCow['Cow'/21, l='MpServer', x=65,50, y=68,00, z=232,50], EntityCow['Cow'/20, l='MpServer', x=53,66, y=69,00, z=242,19], EntityCow['Cow'/23, l='MpServer', x=69,25, y=67,00, z=233,47], EntityCow['Cow'/22, l='MpServer', x=64,53, y=68,00, z=239,69], EntityCow['Cow'/24, l='MpServer', x=65,50, y=68,00, z=237,50], EntityCow['Cow'/38, l='MpServer', x=80,50, y=67,00, z=223,19], EntityCow['Cow'/39, l='MpServer', x=65,94, y=68,00, z=218,09], EntityCow['Cow'/37, l='MpServer', x=80,59, y=67,00, z=224,78], EntityCow['Cow'/40, l='MpServer', x=77,91, y=67,00, z=231,81], EntityCow['Cow'/46, l='MpServer', x=90,31, y=66,00, z=258,34], EntityCow['Cow'/47, l='MpServer', x=94,16, y=68,00, z=257,47], EntityCow['Cow'/45, l='MpServer', x=94,03, y=69,00, z=255,16], EntityCow['Cow'/48, l='MpServer', x=98,97, y=70,00, z=253,13], EntityCow['Cow'/68, l='MpServer', x=133,47, y=63,00, z=118,91], EntityCow['Cow'/65, l='MpServer', x=134,50, y=63,00, z=117,47], EntityCow['Cow'/66, l='MpServer', x=136,16, y=63,00, z=117,38], EntityCow['Cow'/67, l='MpServer', x=134,81, y=63,00, z=119,06], EntityCow['Cow'/77, l='MpServer', x=151,50, y=68,00, z=208,50], EntityCow['Cow'/78, l='MpServer', x=151,50, y=68,00, z=208,50], EntityCow['Cow'/79, l='MpServer', x=151,50, y=67,00, z=211,50], EntityCow['Cow'/84, l='MpServer', x=145,81, y=68,00, z=215,56], EntityCow['Cow'/81, l='MpServer', x=144,63, y=66,00, z=230,75], EntityCow['Cow'/80, l='MpServer', x=149,94, y=66,00, z=215,91], EntityCow['Cow'/83, l='MpServer', x=141,53, y=69,00, z=217,50], EntityCow['Cow'/82, l='MpServer', x=140,31, y=69,00, z=218,28], EntityCreeper['Creeper'/6439, l='MpServer', x=87,50, y=16,00, z=124,50], EntityCreeper['Creeper'/6438, l='MpServer', x=88,50, y=16,00, z=126,50], EntityPig['Pig'/6459, l='MpServer', x=92,50, y=71,00, z=179,50], EntitySkeleton['Skeleton'/6426, l='MpServer', x=17,50, y=23,00, z=166,50], EntityBat['Bat'/233, l='MpServer', x=145,25, y=31,10, z=205,25], EntityBat['Bat'/232, l='MpServer', x=150,50, y=29,10, z=204,28], EntityBat['Bat'/230, l='MpServer', x=150,76, y=29,00, z=205,34], EntitySquid['Squid'/251, l='MpServer', x=28,50, y=58,03, z=212,69], EntitySquid['Squid'/247, l='MpServer', x=28,75, y=59,25, z=209,34], EntityBat['Bat'/244, l='MpServer', x=34,59, y=21,82, z=189,75], EntitySquid['Squid'/262, l='MpServer', x=67,78, y=51,84, z=123,59], EntitySquid['Squid'/261, l='MpServer', x=67,09, y=53,06, z=119,50], EntitySkeleton['Skeleton'/6306, l='MpServer', x=97,50, y=19,00, z=164,50], EntitySkeleton['Skeleton'/6307, l='MpServer', x=98,50, y=19,00, z=162,50], EntitySquid['Squid'/265, l='MpServer', x=64,13, y=51,25, z=123,69], EntitySquid['Squid'/309, l='MpServer', x=70,56, y=60,34, z=134,72], EntitySquid['Squid'/308, l='MpServer', x=60,78, y=60,38, z=136,38], EntitySquid['Squid'/310, l='MpServer', x=75,19, y=60,31, z=139,03], EntitySquid['Squid'/302, l='MpServer', x=70,59, y=60,38, z=132,72], EntityClientPlayerMP['Mii1128'/190, l='MpServer', x=91,76, y=72,62, z=181,43], EntityBat['Bat'/6149, l='MpServer', x=53,44, y=18,92, z=126,75], EntityBat['Bat'/6150, l='MpServer', x=57,25, y=24,70, z=119,28], EntityCreeper['Creeper'/6264, l='MpServer', x=24,78, y=22,00, z=151,13], EntitySkeleton['Skeleton'/6265, l='MpServer', x=33,50, y=21,00, z=147,50], EntityZombie['Zombie'/501, l='MpServer', x=67,50, y=33,00, z=225,50], EntityBat['Bat'/503, l='MpServer', x=156,08, y=18,62, z=129,15], EntitySkeleton['Skeleton'/653, l='MpServer', x=75,50, y=33,00, z=141,50], EntitySkeleton['Skeleton'/654, l='MpServer', x=74,50, y=33,00, z=142,50], EntitySkeleton['Skeleton'/761, l='MpServer', x=110,50, y=29,00, z=151,50], EntityBat['Bat'/729, l='MpServer', x=122,35, y=44,00, z=124,85], EntityCreeper['Creeper'/818, l='MpServer', x=169,50, y=61,93, z=182,56], EntitySkeleton['Skeleton'/828, l='MpServer', x=158,50, y=34,00, z=129,50], EntityZombie['Zombie'/831, l='MpServer', x=119,50, y=19,00, z=258,50], EntitySkeleton['Skeleton'/827, l='MpServer', x=161,31, y=34,20, z=131,88], EntitySkeleton['Skeleton'/826, l='MpServer', x=164,34, y=34,00, z=137,56], EntityZombie['Zombie'/893, l='MpServer', x=125,50, y=38,00, z=205,50], EntityZombie['Zombie'/832, l='MpServer', x=117,66, y=19,00, z=257,56], EntitySpider['Spider'/989, l='MpServer', x=85,19, y=19,00, z=164,28], EntityZombie['Zombie'/963, l='MpServer', x=100,50, y=22,00, z=175,50], EntityZombie['Zombie'/1101, l='MpServer', x=57,50, y=20,00, z=118,50], EntityZombie['Zombie'/5488, l='MpServer', x=64,09, y=21,00, z=101,72], EntityCreeper['Creeper'/5489, l='MpServer', x=40,50, y=57,00, z=228,50], EntityZombie['Zombie'/5487, l='MpServer', x=58,69, y=21,00, z=106,66], EntityZombie['Zombie'/5473, l='MpServer', x=111,50, y=40,00, z=168,50], EntityZombie['Zombie'/5472, l='MpServer', x=115,50, y=40,00, z=166,50], EntityBat['Bat'/5378, l='MpServer', x=65,39, y=19,29, z=116,48], EntityBat['Bat'/5377, l='MpServer', x=95,23, y=26,81, z=107,50], EntityBat['Bat'/5381, l='MpServer', x=69,54, y=24,89, z=116,65], EntitySkeleton['Skeleton'/5620, l='MpServer', x=97,50, y=24,00, z=254,50], EntityZombie['Zombie'/5619, l='MpServer', x=106,59, y=21,00, z=255,03], EntityCreeper['Creeper'/1238, l='MpServer', x=55,66, y=22,00, z=176,50], EntitySkeleton['Skeleton'/1241, l='MpServer', x=96,31, y=25,00, z=253,50], EntityCreeper['Creeper'/5591, l='MpServer', x=83,50, y=38,00, z=127,50], EntityCreeper['Creeper'/5590, l='MpServer', x=87,50, y=38,00, z=125,50], EntityZombie['Zombie'/1251, l='MpServer', x=46,50, y=20,00, z=230,50], EntitySkeleton['Skeleton'/5585, l='MpServer', x=113,50, y=42,00, z=217,50], EntitySkeleton['Skeleton'/1300, l='MpServer', x=93,50, y=37,00, z=209,50], EntityZombie['Zombie'/1312, l='MpServer', x=58,50, y=47,00, z=215,50], EntityZombie['Zombie'/5355, l='MpServer', x=143,50, y=18,00, z=166,50], EntitySkeleton['Skeleton'/5362, l='MpServer', x=91,50, y=37,00, z=210,50], EntityZombie['Zombie'/1483, l='MpServer', x=90,50, y=51,00, z=201,50], EntityCreeper['Creeper'/5341, l='MpServer', x=84,50, y=23,00, z=158,50], EntityCreeper['Creeper'/5342, l='MpServer', x=144,50, y=20,00, z=160,50], EntityZombie['Zombie'/1513, l='MpServer', x=97,22, y=25,00, z=253,50], EntitySpider['Spider'/5976, l='MpServer', x=90,03, y=17,00, z=186,50], EntityCreeper['Creeper'/5975, l='MpServer', x=91,69, y=17,00, z=186,50], EntitySkeleton['Skeleton'/5965, l='MpServer', x=77,75, y=27,00, z=201,69], EntityCreeper['Creeper'/5964, l='MpServer', x=90,50, y=33,00, z=210,50], EntityCreeper['Creeper'/6002, l='MpServer', x=83,50, y=32,00, z=197,50], EntityCreeper['Creeper'/6003, l='MpServer', x=76,34, y=30,00, z=195,00], EntityBat['Bat'/5891, l='MpServer', x=144,50, y=18,35, z=167,56], EntityCreeper['Creeper'/6110, l='MpServer', x=130,50, y=27,00, z=257,50], EntitySkeleton['Skeleton'/5698, l='MpServer', x=12,50, y=24,00, z=149,50], EntityZombie['Zombie'/5738, l='MpServer', x=79,50, y=36,00, z=132,50], EntityZombie['Zombie'/5735, l='MpServer', x=98,56, y=45,00, z=100,97], EntityZombie['Zombie'/5734, l='MpServer', x=98,50, y=47,00, z=104,50], EntityCreeper['Creeper'/5733, l='MpServer', x=82,50, y=35,00, z=209,50], EntitySkeleton['Skeleton'/5694, l='MpServer', x=52,50, y=20,00, z=131,50], EntitySkeleton['Skeleton'/5695, l='MpServer', x=50,50, y=20,00, z=133,50], EntityCreeper['Creeper'/5815, l='MpServer', x=93,50, y=33,00, z=195,50], EntityCreeper['Creeper'/5814, l='MpServer', x=97,50, y=33,00, z=197,50]]
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:2433)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:916)
at net.minecraft.client.main.Main.main(SourceFile:148)
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: 1.7.10
Operating System: Windows 8 (x86) version 6.2
Java Version: 1.7.0_67, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 111297984 bytes (106 MB) / 396242944 bytes (377 MB) up to 523501568 bytes (499 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -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: 13, tallocated: 95
FML: MCP v9.05 FML v7.10.25.1208 Minecraft Forge 10.13.0.1208 6 mods loaded, 6 mods active
mcp{9.05} Minecraft Coder Pack Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{7.10.25.1208} Forge Mod Loader Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{10.13.0.1208} Minecraft Forge Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CodeChickenCore{1.0.2.9} CodeChicken Core Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NotEnoughItems{1.0.2.15} Not Enough Items Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Steamcraft{0.26.2} Flaxbeard's Steam Power Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Launched Version: 1.7.10-Forge10.13.0.1208
LWJGL: 2.9.1
OpenGL: GeForce GT 720M/PCIe/SSE2 GL version 4.3.0, NVIDIA Corporation
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: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Anisotropic Filtering: Off (1)

[NimmerNeko]

Sorry didnt look at the closed issues:D