---- Minecraft Crash Report ----
// I blame Dinnerbone.

Time: 4/21/17 8:07 PM
Description: Ticking entity

java.lang.IllegalStateException: Unable to get Y-rotated facing of up
	at ej.e(SourceFile:136)
	at apo.a(SourceFile:184)
	at avs$a.d(SourceFile:428)
	at asv.a(SourceFile:123)
	at zk.n(SourceFile:120)
	at ur.B_(SourceFile:1728)
	at us.B_(SourceFile:281)
	at alt.a(SourceFile:1519)
	at nr.a(SourceFile:720)
	at alt.h(SourceFile:1497)
	at alt.k(SourceFile:1380)
	at nr.k(SourceFile:553)
	at net.minecraft.server.MinecraftServer.D(SourceFile:634)
	at net.minecraft.server.MinecraftServer.C(SourceFile:562)
	at cfz.C(SourceFile:154)
	at net.minecraft.server.MinecraftServer.run(SourceFile:466)
	at java.lang.Thread.run(Thread.java:745)


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

-- Head --
Thread: Server thread
Stacktrace:
	at ej.e(SourceFile:136)
	at apo.a(SourceFile:184)
	at avs$a.d(SourceFile:428)
	at asv.a(SourceFile:123)
	at zk.n(SourceFile:120)
	at ur.B_(SourceFile:1728)
	at us.B_(SourceFile:281)
	at alt.a(SourceFile:1519)
	at nr.a(SourceFile:720)
	at alt.h(SourceFile:1497)

-- Entity being ticked --
Details:
	Entity Type: minecraft:snowman (zk)
	Entity ID: 1933
	Entity Name: Snow Golem
	Entity's Exact location: -400.49, 86.50, -388.91
	Entity's Block location: World: (-401,86,-389), Chunk: (at 15,5,11 in -26,-25; contains blocks -416,0,-400 to -401,255,-385), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Entity's Momentum: 0.00, -0.08, -0.00
	Entity's Passengers: []
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at alt.k(SourceFile:1380)
	at nr.k(SourceFile:553)

-- Affected level --
Details:
	Level name: Tutorial World II
	All players: 0 total; []
	Chunk stats: ServerChunkCache: 634 Drop: 0
	Level seed: 7569791241910200334
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: World: (-369,75,-483), Chunk: (at 15,4,13 in -24,-31; contains blocks -384,0,-496 to -369,255,-481), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Level time: 13760471 game time, 6000 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 1 (now: false), thunder time: 1 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.D(SourceFile:634)
	at net.minecraft.server.MinecraftServer.C(SourceFile:562)
	at cfz.C(SourceFile:154)
	at net.minecraft.server.MinecraftServer.run(SourceFile:466)
	at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
	Minecraft Version: 17w16b
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_92, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 176235392 bytes (168 MB) / 573571072 bytes (547 MB) up to 1308622848 bytes (1248 MB)
	JVM Flags: 1 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Player Count: 0 / 8; []
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.