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

Time: 04/10/19 18:32
Description: Ticking block entity

java.lang.NullPointerException: Ticking block entity
	at bvm.h(SourceFile:359)
	at bvm.a(SourceFile:434)
	at bwl.a(SourceFile:310)
	at bwl.a(SourceFile:274)
	at bwl.t(SourceFile:180)
	at bwl.a(SourceFile:122)
	at bwl.Z_(SourceFile:109)
	at bjk.K(SourceFile:597)
	at wx.a(SourceFile:407)
	at net.minecraft.server.MinecraftServer.b(SourceFile:843)
	at net.minecraft.server.MinecraftServer.a(SourceFile:782)
	at ecc.a(SourceFile:128)
	at net.minecraft.server.MinecraftServer.run(SourceFile:650)
	at java.lang.Thread.run(Thread.java:748)


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

-- Head --
Thread: Server thread
Stacktrace:
	at bvm.h(SourceFile:359)
	at bvm.a(SourceFile:434)
	at bwl.a(SourceFile:310)
	at bwl.a(SourceFile:274)
	at bwl.t(SourceFile:180)
	at bwl.a(SourceFile:122)
	at bwl.Z_(SourceFile:109)

-- Block entity being ticked --
Details:
	Name: minecraft:hopper // bwl
	Block: Block{minecraft:hopper}[enabled=true,facing=down]
	Block location: World: (20,6,0), Chunk: (at 4,0,0 in 1,0; contains blocks 16,0,0 to 31,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Block: Block{minecraft:hopper}[enabled=true,facing=down]
	Block location: World: (20,6,0), Chunk: (at 4,0,0 in 1,0; contains blocks 16,0,0 to 31,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Stacktrace:
	at bjk.K(SourceFile:597)
	at wx.a(SourceFile:407)

-- Affected level --
Details:
	All players: 1 total; [wy['2No2Name'/6, l='BlockEntity::world == null', x=17.96, y=5.00, z=-2.09]]
	Chunk stats: ServerChunkCache: 2025
	Level dimension: minecraft:overworld
	Level name: BlockEntity::world == null
	Level seed: 5461966273032898702
	Level generator: ID 01 - flat, ver 0. Features enabled: true
	Level generator options: {biome:"minecraft:the_void",layers:[{block:"minecraft:air",height:1b}],structures:{decoration:{}}}
	Level spawn location: World: (0,4,0), 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: 10473 game time, 1000 day time
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.b(SourceFile:843)
	at net.minecraft.server.MinecraftServer.a(SourceFile:782)
	at ecc.a(SourceFile:128)
	at net.minecraft.server.MinecraftServer.run(SourceFile:650)
	at java.lang.Thread.run(Thread.java:748)

-- System Details --
Details:
	Minecraft Version: 19w40a
	Minecraft Version ID: 19w40a
	Operating System: Linux (amd64) version 4.15.0-64-generic
	Java Version: 1.8.0_201, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 215476512 bytes (205 MB) / 501530624 bytes (478 MB) up to 2134114304 bytes (2035 MB)
	CPUs: 4
	JVM Flags: 6 total; -Xss1M -Xmx2G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	Player Count: 1 / 8; [wy['2No2Name'/6, l='BlockEntity::world == null', x=17.96, y=5.00, z=-2.09]]
	Data Packs: vanilla
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.