---- Minecraft Crash Report ----
// I just don't know what went wrong :(

Time: 16.12.17 15:11
Description: Ticking block entity

java.lang.NullPointerException: Ticking block entity
	at bba.f(SourceFile:108)
	at bba.Q_(SourceFile:322)
	at aqy.k(SourceFile:1470)
	at bne.m(SourceFile:1253)
	at bne.b(SourceFile:791)
	at bne.a(SourceFile:380)
	at net.minecraft.client.main.Main.main(SourceFile:140)


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

-- Head --
Thread: Client thread
Stacktrace:
	at bba.f(SourceFile:108)
	at bba.Q_(SourceFile:322)

-- Block entity being ticked --
Details:
	Name: minecraft:piston // bba
	Block: minecraft:piston_head[facing=up,short=false,type=normal]
	Block location: World: (24,49,58), Chunk: (at 8,3,10 in 1,3; contains blocks 16,0,48 to 31,255,63), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Block: minecraft:piston_head[facing=up,short=false,type=normal]
	Block location: World: (24,49,58), Chunk: (at 8,3,10 in 1,3; contains blocks 16,0,48 to 31,255,63), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Stacktrace:
	at aqy.k(SourceFile:1470)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bzk['Panda'/1, l='MpServer', x=17,90, y=44,00, z=56,72]]
	Chunk stats: MultiplayerChunkCache: 1086, 1086
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (0,0,0), Chunk: (at 0,0,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 890478 game time, 6000 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: 7 total; [agj['Falling Block'/0, l='MpServer', x=-0,50, y=44,50, z=23,50], bzk['Panda'/1, l='MpServer', x=17,90, y=44,00, z=56,72], agk['Redstone Repeater'/11, l='MpServer', x=29,13, y=43,13, z=55,59], agk['Redstone Dust'/20, l='MpServer', x=28,48, y=43,13, z=55,56], agk['Redstone Dust'/24, l='MpServer', x=33,70, y=43,13, z=55,39], agk['Redstone Dust'/26, l='MpServer', x=21,17, y=43,00, z=58,10], agk['Redstone Repeater'/39, l='MpServer', x=26,74, y=43,13, z=58,78]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at bxl.a(SourceFile:356)
	at bne.b(SourceFile:1838)
	at bne.a(SourceFile:389)
	at net.minecraft.client.main.Main.main(SourceFile:140)

-- System Details --
Details:
	Minecraft Version: 17w50a
	Operating System: Linux (amd64) version 4.4.0-104-lowlatency
	Java Version: 1.8.0_151, Oracle Corporation
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 130246544 bytes (124 MB) / 419786752 bytes (400 MB) up to 2134114304 bytes (2035 MB)
	JVM Flags: 6 total; -Xss42M -Xmx2G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 17w50a
	LWJGL: 3.1.2 build 29
	OpenGL: GeForce GTX 680/PCIe/SSE2 GL version 4.5.0 NVIDIA 384.90, 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: Yes
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: 
	Current Language: ~~ERROR~~ NullPointerException: null
	Profiler Position: N/A (disabled)
	CPU: 8x Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz