---- Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 12/11/17 8:20 PM
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:sandstone
	Block location: World: (1352,65,-874), Chunk: (at 8,4,6 in 84,-55; contains blocks 1344,0,-880 to 1359,255,-865), Region: (2,-2; contains chunks 64,-64 to 95,-33, blocks 1024,0,-1024 to 1535,255,-513)
	Block: minecraft:sandstone
	Block location: World: (1352,65,-874), Chunk: (at 8,4,6 in 84,-55; contains blocks 1344,0,-880 to 1359,255,-865), Region: (2,-2; contains chunks 64,-64 to 95,-33, blocks 1024,0,-1024 to 1535,255,-513)
Stacktrace:
	at aqy.k(SourceFile:1470)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bzk['BCNOFNeNaMg'/0, l='MpServer', x=1344.81, y=56.00, z=-875.46]]
	Chunk stats: MultiplayerChunkCache: 81, 81
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (1389,4,-872), Chunk: (at 13,0,8 in 86,-55; contains blocks 1376,0,-880 to 1391,255,-865), Region: (2,-2; contains chunks 64,-64 to 95,-33, blocks 1024,0,-1024 to 1535,255,-513)
	Level time: 2106121 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: 1 total; [bzk['BCNOFNeNaMg'/0, l='MpServer', x=1344.81, y=56.00, z=-875.46]]
	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: Windows 8.1 (amd64) version 6.3
	Java Version: 1.8.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 251672576 bytes (240 MB) / 419430400 bytes (400 MB) up to 1073741824 bytes (1024 MB)
	JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 17w50a
	LWJGL: 3.1.2 build 29
	OpenGL: Intel(R) HD Graphics 4200 GL version 4.2.0 - Build 10.18.10.3621, Intel
	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: ~~ERROR~~ NullPointerException: null
	Profiler Position: N/A (disabled)
	CPU: 4x Intel(R) Core(TM) i3-4012Y CPU @ 1.50GHz