[11:49:21] [Server thread/ERROR]: Encountered an unexpected exception
f: Exception ticking world
	at net.minecraft.server.MinecraftServer.D(SourceFile:628) ~[MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer.C(SourceFile:560) ~[MinecraftServer.class:?]
	at chd.C(IntegratedServer.java:252) ~[chd.class:?]
	at net.minecraft.server.MinecraftServer.run(SourceFile:464) [MinecraftServer.class:?]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_211]
Caused by: java.lang.NullPointerException
	at anb.a(WorldEntitySpawner.java:335) ~[anb.class:?]
	at anb.a(WorldEntitySpawner.java:202) ~[anb.class:?]
	at oo.d(SourceFile:203) ~[oo.class:?]
	at net.optifine.override.WorldServerOF.d(WorldServerOF.java:39) ~[WorldServerOF.class:?]
	at net.minecraft.server.MinecraftServer.D(SourceFile:624) ~[MinecraftServer.class:?]
	... 4 more
[11:49:21] [Server thread/ERROR]: This crash report has been saved to: C:\Users\admin\AppData\Roaming\.minecraft\crash-reports\crash-2019-06-12_11.49.21-server.txt
[11:49:21] [Server thread/INFO]: Stopping server
---- Minecraft Crash Report ----
// Uh... Did I do that?

Time: 6/12/19 11:49 AM
Description: Exception ticking world

java.lang.NullPointerException: Exception ticking world
	at anb.a(WorldEntitySpawner.java:335)
	at anb.a(WorldEntitySpawner.java:202)
	at oo.d(SourceFile:203)
	at net.optifine.override.WorldServerOF.d(WorldServerOF.java:39)
	at net.minecraft.server.MinecraftServer.D(SourceFile:624)
	at net.minecraft.server.MinecraftServer.C(SourceFile:560)
	at chd.C(IntegratedServer.java:252)
	at net.minecraft.server.MinecraftServer.run(SourceFile:464)
	at java.lang.Thread.run(Unknown Source)


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

-- Head --
Thread: Client thread
Stacktrace:
	at anb.a(WorldEntitySpawner.java:335)
	at anb.a(WorldEntitySpawner.java:202)
	at oo.d(SourceFile:203)
	at net.optifine.override.WorldServerOF.d(WorldServerOF.java:39)

-- Affected level --
Details:
	Level name: Skyblock 3.07
	All players: 1 total; [oq['skypig048'/0, l='Skyblock 3.07', x=7.62, y=61.42, z=-163.98]]
	Chunk stats: ServerChunkCache: 400 Drop: 0
	Level seed: 2331713264264927020
	Level generator: ID 08 - default_1_1, ver 0. Features enabled: true
	Level generator options:
	Level spawn location: World: (6,64,6), Chunk: (at 6,4,6 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: 38400 game time, 38400 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 29606 (now: false), thunder time: 79867 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.D(SourceFile:624)
	at net.minecraft.server.MinecraftServer.C(SourceFile:560)
	at chd.C(IntegratedServer.java:252)
	at net.minecraft.server.MinecraftServer.run(SourceFile:464)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 1.12.2
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.8.0_211, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 140047640 bytes (133 MB) / 429953024 bytes (410 MB) up to 1060372480 bytes (1011 MB)
	JVM Flags: 6 total; -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [oq['skypig048'/0, l='Skyblock 3.07', x=7.62, y=61.42, z=-163.98]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Very likely; Jar signature invalidated
#@!@# Game crashed! Crash report saved to: #@!@# C:\Users\admin\AppData\Roaming\.minecraft\crash-reports\crash-2019-06-12_11.49.21-server.txt
[11:49:21] [Server thread/INFO]: Saving players
AL lib: (EE) alc_cleanup: 1 device not closed
Java HotSpot(TM) Client VM warning: Using incremental CMS is deprecated and will likely be removed in a future release