Hopper: java.lang.NullPointerException: Ticking entity

java.lang.NullPointerException: Ticking entity
	at xk.s_(SourceFile:96)
	at aqr.a(SourceFile:1406)
	at aqr.g(SourceFile:1384)

---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 2014-08-19 17:41
Description: Ticking entity

java.lang.NullPointerException: Ticking entity
	at xk.s_(SourceFile:96)
	at aqr.a(SourceFile:1406)
	at aqr.g(SourceFile:1384)
	at aqr.i(SourceFile:1277)
	at bsr.r(SourceFile:1829)
	at bsr.as(SourceFile:876)
	at bsr.a(SourceFile:313)
	at net.minecraft.client.main.Main.main(SourceFile:120)


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

-- Head --
Stacktrace:
	at xk.s_(SourceFile:96)
	at aqr.a(SourceFile:1406)
	at aqr.g(SourceFile:1384)

-- Entity being ticked --
Details:
	Entity Type: XPOrb (xk)
	Entity ID: 95983
	Entity Name: Erfarenhetsklot
	Entity's Exact location: 6998,00, 2336,00, 2701,00
	Entity's Block location: 6998,00,2336,00,2701,00 - World: (6998,2336,2701), Chunk: (at 6,146,13 in 437,168; contains blocks 6992,0,2688 to 7007,255,2703), Region: (13,5; contains chunks 416,160 to 447,191, blocks 6656,0,2560 to 7167,255,3071)
	Entity's Momentum: 0,12, 0,01, 0,12
	Entity's Rider: ~~ERROR~~ NullPointerException: null
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at aqr.i(SourceFile:1277)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [cij['Linus_lego'/226, l='MpServer', x=215,17, y=73,00, z=87,34]]
	Chunk stats: MultiplayerChunkCache: 289, 289
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: 252,00,64,00,72,00 - World: (252,64,72), Chunk: (at 12,4,8 in 15,4; contains blocks 240,0,64 to 255,255,79), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 252016 game time, 252016 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: true), thunder time: 0 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
	Forced entities: 70 total; [abz['Gris'/137, l='MpServer', x=244,00, y=67,00, z=16,53], abn['Fladdermus'/139, l='MpServer', x=232,69, y=17,17, z=46,97], abn['Fladdermus'/138, l='MpServer', x=242,93, y=13,93, z=29,24], abz['Gris'/141, l='MpServer', x=245,13, y=67,00, z=49,53], abn['Fladdermus'/140, l='MpServer', x=241,25, y=20,10, z=54,47], abz['Gris'/152, l='MpServer', x=264,16, y=66,00, z=53,09], abz['Gris'/154, l='MpServer', x=271,38, y=66,00, z=138,16], abn['Fladdermus'/156, l='MpServer', x=275,25, y=32,10, z=7,25], abn['Fladdermus'/2327, l='MpServer', x=245,44, y=19,00, z=45,53], abn['Fladdermus'/158, l='MpServer', x=273,50, y=34,10, z=18,09], abn['Fladdermus'/159, l='MpServer', x=280,05, y=15,05, z=76,20], abn['Fladdermus'/2329, l='MpServer', x=231,75, y=20,28, z=59,50], adx['container.minecart'/150, l='MpServer', x=263,50, y=33,06, z=13,50], abn['Fladdermus'/151, l='MpServer', x=271,56, y=34,10, z=23,88], abn['Fladdermus'/2332, l='MpServer', x=238,28, y=20,88, z=50,44], abn['Fladdermus'/2337, l='MpServer', x=249,47, y=18,75, z=51,44], cij['Linus_lego'/226, l='MpServer', x=215,17, y=73,00, z=87,34], abz['Gris'/163, l='MpServer', x=281,91, y=74,00, z=137,41], abz['Gris'/162, l='MpServer', x=287,91, y=65,00, z=110,09], abz['Gris'/161, l='MpServer', x=287,00, y=65,00, z=113,59], abz['Gris'/160, l='MpServer', x=284,56, y=64,00, z=82,22], abn['Fladdermus'/2363, l='MpServer', x=232,63, y=18,09, z=17,88], abn['Fladdermus'/2362, l='MpServer', x=234,75, y=19,09, z=9,25], abn['Fladdermus'/68, l='MpServer', x=195,76, y=45,08, z=82,65], abn['Fladdermus'/69, l='MpServer', x=206,28, y=48,20, z=93,85], acn['Bläckfisk'/65, l='MpServer', x=203,75, y=60,03, z=42,56], acn['Bläckfisk'/66, l='MpServer', x=203,47, y=61,81, z=49,56], abn['Fladdermus'/67, l='MpServer', x=201,67, y=45,09, z=95,82], aca['Rabbit'/76, l='MpServer', x=210,59, y=73,00, z=79,59], aca['Rabbit'/78, l='MpServer', x=214,23, y=73,10, z=81,65], aca['Rabbit'/79, l='MpServer', x=219,56, y=73,00, z=94,53], aca['Rabbit'/73, l='MpServer', x=213,28, y=73,00, z=77,78], aca['Rabbit'/74, l='MpServer', x=214,50, y=74,00, z=77,22], aca['Rabbit'/75, l='MpServer', x=211,81, y=73,00, z=77,81], aca['Rabbit'/84, l='MpServer', x=226,06, y=73,02, z=81,41], aca['Rabbit'/87, l='MpServer', x=222,88, y=73,00, z=90,44], aca['Rabbit'/86, l='MpServer', x=226,97, y=73,00, z=82,19], aca['Rabbit'/81, l='MpServer', x=220,38, y=73,00, z=93,38], aca['Rabbit'/80, l='MpServer', x=214,28, y=73,02, z=84,28], aca['Rabbit'/83, l='MpServer', x=225,42, y=73,07, z=92,35], aca['Rabbit'/92, l='MpServer', x=214,31, y=73,00, z=87,75], abz['Gris'/95, l='MpServer', x=228,69, y=68,00, z=10,47], aca['Rabbit'/89, l='MpServer', x=227,22, y=73,00, z=81,28], aca['Rabbit'/88, l='MpServer', x=221,59, y=73,00, z=92,78], aca['Rabbit'/91, l='MpServer', x=221,68, y=73,19, z=84,26], aca['Rabbit'/90, l='MpServer', x=216,81, y=73,00, z=86,88], aca['Rabbit'/102, l='MpServer', x=226,34, y=73,00, z=83,84], aca['Rabbit'/103, l='MpServer', x=227,78, y=73,00, z=81,97], aca['Rabbit'/100, l='MpServer', x=218,84, y=73,00, z=81,72], aca['Rabbit'/101, l='MpServer', x=224,50, y=73,00, z=85,81], aca['Rabbit'/98, l='MpServer', x=227,31, y=73,00, z=85,13], aca['Rabbit'/99, l='MpServer', x=229,41, y=73,00, z=85,22], abn['Fladdermus'/96, l='MpServer', x=233,18, y=18,19, z=48,35], abz['Gris'/97, l='MpServer', x=235,75, y=66,00, z=72,78], aca['Rabbit'/110, l='MpServer', x=240,19, y=73,00, z=94,59], aca['Rabbit'/111, l='MpServer', x=226,47, y=73,00, z=84,31], aca['Rabbit'/108, l='MpServer', x=225,84, y=73,00, z=84,63], aca['Rabbit'/109, l='MpServer', x=228,28, y=73,00, z=85,81], aca['Rabbit'/106, l='MpServer', x=223,84, y=73,00, z=85,16], aca['Rabbit'/107, l='MpServer', x=225,64, y=73,27, z=83,87], aca['Rabbit'/104, l='MpServer', x=225,13, y=73,00, z=82,78], aca['Rabbit'/105, l='MpServer', x=228,81, y=73,00, z=84,78], aca['Rabbit'/118, l='MpServer', x=228,41, y=73,00, z=92,06], aca['Rabbit'/117, l='MpServer', x=228,91, y=73,00, z=97,44], aca['Rabbit'/116, l='MpServer', x=226,13, y=73,00, z=101,72], aca['Rabbit'/115, l='MpServer', x=224,66, y=73,00, z=102,41], aca['Rabbit'/114, l='MpServer', x=226,44, y=73,00, z=105,91], aca['Rabbit'/113, l='MpServer', x=225,84, y=73,00, z=82,97], aca['Rabbit'/112, l='MpServer', x=227,25, y=73,00, z=92,22], xk['Erfarenhetsklot'/95983, l='MpServer', x=6998,00, y=2336,00, z=2701,00]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at cei.a(SourceFile:308)
	at bsr.b(SourceFile:2257)
	at bsr.a(SourceFile:322)
	at net.minecraft.client.main.Main.main(SourceFile:120)

-- System Details --
Details:
	Minecraft Version: 14w34c
	Operating System: Windows 8 (x86) version 6.2
	Java Version: 1.7.0_60, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 139257216 bytes (132 MB) / 364507136 bytes (347 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
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Launched Version: 14w34c
	LWJGL: 2.9.1
	OpenGL: GeForce GT 755M/PCIe/SSE2 GL version 4.4.0, NVIDIA Corporation
	GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

	Using VBOs: No
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: []
	Current Language: Svenska (Sverige)
	Profiler Position: N/A (disabled)