---- Minecraft Crash Report ----
// I bet Cylons wouldn't have this problem.

Time: 11:22 06/07/18
Description: Unexpected error

java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)
	at java.util.HashMap$EntryIterator.next(HashMap.java:1463)
	at java.util.HashMap$EntryIterator.next(HashMap.java:1461)
	at ww.a(SourceFile:76)
	at cfw.d(SourceFile:246)
	at cfw.b(SourceFile:93)
	at cfw.a(SourceFile:61)
	at cfk.a(SourceFile:249)
	at csr.a(SourceFile:780)
	at ces.c(SourceFile:837)
	at ces.a(SourceFile:380)
	at net.minecraft.client.main.Main.main(SourceFile:144)


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

-- Head --
Thread: Client thread
Stacktrace:
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)
	at java.util.HashMap$EntryIterator.next(HashMap.java:1463)
	at java.util.HashMap$EntryIterator.next(HashMap.java:1461)
	at ww.a(SourceFile:76)
	at cfw.d(SourceFile:246)
	at cfw.b(SourceFile:93)
	at cfw.a(SourceFile:61)
	at cfk.a(SourceFile:249)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [csc['SHsuperCM'/30, l='MpServer', x=-69.75, y=52.00, z=-16.35]]
	Chunk stats: MultiplayerChunkCache: 1089, 1089
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: {}
	Level spawn location: World: (8,55,8), Chunk: (at 8,3,8 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: 1039729 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: 31 total; [ajc['Cow'/0, l='MpServer', x=-46.55, y=69.36, z=18.30], ajc['Cow'/1, l='MpServer', x=-46.55, y=69.39, z=19.39], ajc['Cow'/2, l='MpServer', x=-46.45, y=69.27, z=20.39], ajc['Cow'/3, l='MpServer', x=-46.55, y=69.60, z=21.83], ajc['Cow'/4, l='MpServer', x=-46.45, y=69.59, z=23.78], ajc['Cow'/5, l='MpServer', x=-46.55, y=80.09, z=24.53], ajc['Cow'/6, l='MpServer', x=-46.55, y=80.10, z=22.58], ajc['Cow'/7, l='MpServer', x=-46.55, y=80.10, z=20.90], ajc['Cow'/8, l='MpServer', x=-46.45, y=80.09, z=18.55], ajc['Cow'/9, l='MpServer', x=-46.45, y=80.10, z=16.80], ajc['Cow'/10, l='MpServer', x=-46.55, y=78.10, z=16.62], ajc['Cow'/11, l='MpServer', x=-46.45, y=78.10, z=17.82], ajc['Cow'/12, l='MpServer', x=-46.55, y=78.10, z=19.49], ajc['Cow'/13, l='MpServer', x=-46.45, y=78.09, z=21.43], ajc['Cow'/14, l='MpServer', x=-46.45, y=77.40, z=22.53], ajc['Cow'/15, l='MpServer', x=-46.55, y=76.10, z=21.60], ajc['Cow'/16, l='MpServer', x=-46.55, y=76.10, z=20.69], ajc['Cow'/17, l='MpServer', x=-46.55, y=76.10, z=19.77], ajc['Cow'/18, l='MpServer', x=-46.45, y=76.10, z=17.40], ajc['Cow'/19, l='MpServer', x=-46.45, y=74.29, z=16.47], ajc['Cow'/20, l='MpServer', x=-46.55, y=74.10, z=17.41], ajc['Cow'/21, l='MpServer', x=-46.55, y=74.10, z=19.40], ajc['Cow'/22, l='MpServer', x=-46.55, y=74.09, z=21.67], ajc['Cow'/23, l='MpServer', x=-46.55, y=72.79, z=22.55], ajc['Cow'/24, l='MpServer', x=-46.55, y=72.10, z=21.55], ajc['Cow'/25, l='MpServer', x=-46.55, y=72.10, z=20.62], ajc['Cow'/26, l='MpServer', x=-46.55, y=72.10, z=19.49], ajc['Cow'/27, l='MpServer', x=-46.45, y=72.10, z=17.40], ajc['Cow'/28, l='MpServer', x=-46.55, y=70.44, z=16.45], ajc['Cow'/29, l='MpServer', x=-46.45, y=69.52, z=17.40], csc['SHsuperCM'/30, l='MpServer', x=-69.75, y=52.00, z=-16.35]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at cpz.a(SourceFile:390)
	at ces.b(SourceFile:1799)
	at ces.a(SourceFile:393)
	at net.minecraft.client.main.Main.main(SourceFile:144)

-- System Details --
Details:
	Minecraft Version: 1.13-pre6
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_51, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 2880204696 bytes (2746 MB) / 4260364288 bytes (4063 MB) up to 4260364288 bytes (4063 MB)
	JVM Flags: 4 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx4096M -Xms4096M
	Launched Version: 1.13-pre6
	LWJGL: 3.1.6 build 14
	OpenGL: GeForce GTX 1050 Ti/PCIe/SSE2 GL version 4.6.0 NVIDIA 388.13, NVIDIA Corporation
	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: Yes
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: vanilla, file/SHCM Tweaks
	Current Language: English (United Kingdom)
	Profiler Position: N/A (disabled)
	CPU: 8x Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz