Crash Report

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

Time: 1/16/16 12:50 PM
Description: Exception while updating neighbours

java.lang.NullPointerException: Exception while updating neighbours
	at apr.F(SourceFile:135)
	at apr.m(SourceFile:88)
	at ajm.a(SourceFile:82)
	at ahp.e(SourceFile:446)
	at ahp.d(SourceFile:412)
	at ahp.c(SourceFile:381)
	at ahp.a(SourceFile:325)
	at akk.c(SourceFile:78)
	at apx.c(SourceFile:16)
	at ahp.k(SourceFile:1422)
	at lp.k(SourceFile:552)
	at net.minecraft.server.MinecraftServer.D(SourceFile:624)
	at la.D(SourceFile:339)
	at net.minecraft.server.MinecraftServer.C(SourceFile:552)
	at net.minecraft.server.MinecraftServer.run(SourceFile:456)
	at java.lang.Thread.run(Unknown Source)


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

-- Head --
Stacktrace:
	at apr.F(SourceFile:135)
	at apr.m(SourceFile:88)
	at ajm.a(SourceFile:82)

-- Block being updated --
Details:
	Source block type: ID #151 (tile.daylightDetector // akk)
	Block: minecraft:beacon
	Block location: World: (-11,68,15), Chunk: (at 5,4,15 in -1,0; contains blocks -16,0,0 to -1,255,15), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Stacktrace:
	at ahp.e(SourceFile:446)
	at ahp.d(SourceFile:412)
	at ahp.c(SourceFile:381)
	at ahp.a(SourceFile:325)
	at akk.c(SourceFile:78)
	at apx.c(SourceFile:16)

-- Block entity being ticked --
Details:
	Name: DLDetector // apx
	Block type: ID #151 (tile.daylightDetector // akk)
	Block data value: 13 / 0xD / 0b1101
	Block location: World: (-11,69,15), Chunk: (at 5,4,15 in -1,0; contains blocks -16,0,0 to -1,255,15), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Actual block type: ID #151 (tile.daylightDetector // akk)
	Actual block data value: 13 / 0xD / 0b1101
Stacktrace:
	at ahp.k(SourceFile:1422)
	at lp.k(SourceFile:552)

-- Affected level --
Details:
	Level name: world
	All players: 0 total; []
	Chunk stats: ServerChunkCache: 628 Drop: 0
	Level seed: -322410565372745022
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options:
	Level spawn location: World: (19,64,194), Chunk: (at 3,4,2 in 1,12; contains blocks 16,0,192 to 31,255,207), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 1598218240 game time, 59576874 day time
	Level dimension: -1
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 1 (now: false), thunder time: 1 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.D(SourceFile:624)
	at la.D(SourceFile:339)
	at net.minecraft.server.MinecraftServer.C(SourceFile:552)
	at net.minecraft.server.MinecraftServer.run(SourceFile:456)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 16w02a
	Operating System: Linux (amd64) version 2.6.32-504.3.3.el6.x86_64
	Java Version: 1.7.0_72, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 1030925624 bytes (983 MB) / 1419116544 bytes (1353 MB) up to 1419116544 bytes (1353 MB)
	JVM Flags: 5 total; -Xmx1400M -Xms1400M -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=256M
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Player Count: 0 / 28; []
	Is Modded: Unknown (can't tell)
	Type: Dedicated Server (map_server.txt)