---- Minecraft Crash Report ----
// This doesn't make any sense!

Time: 9/2/19 3:56 AM
Description: Rendering Block Entity

java.lang.IllegalArgumentException: Attribute is already registered!
	at akr.b(SourceFile:29)
	at akt.b(SourceFile:30)
	at awf.a(SourceFile:89)
	at awf.a(SourceFile:341)
	at bib.d(SourceFile:256)
	at drb.a(SourceFile:20)
	at drb.a(SourceFile:15)
	at drb.a(SourceFile:10)
	at dqq.a(SourceFile:139)
	at dqq.a(SourceFile:121)
	at dow.a(SourceFile:606)
	at dos.b(SourceFile:840)
	at dos.a(SourceFile:747)
	at dos.a(SourceFile:613)
	at czq.e(SourceFile:941)
	at czq.b(SourceFile:402)
	at net.minecraft.client.main.Main.main(SourceFile:194)


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

-- Head --
Thread: Render thread
Stacktrace:
	at akr.b(SourceFile:29)
	at akt.b(SourceFile:30)
	at awf.a(SourceFile:89)
	at awf.a(SourceFile:341)
	at bib.d(SourceFile:256)
	at drb.a(SourceFile:20)
	at drb.a(SourceFile:15)
	at drb.a(SourceFile:10)

-- Block Entity Details --
Details:
	Name: minecraft:mob_spawner // bwb
	Block: Block{minecraft:spawner}
	Block location: World: (-53,63,0), Chunk: (at 11,3,0 in -4,0; contains blocks -64,0,0 to -49,255,15), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Block: Block{minecraft:spawner}
	Block location: World: (-53,63,0), Chunk: (at 11,3,0 in -4,0; contains blocks -64,0,0 to -49,255,15), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Stacktrace:
	at dqq.a(SourceFile:139)
	at dqq.a(SourceFile:121)
	at dow.a(SourceFile:606)
	at dos.b(SourceFile:840)
	at dos.a(SourceFile:747)

-- Affected level --
Details:
	All players: 1 total; [dof['Asteraoth'/428, l='MpServer', x=-50.92, y=63.00, z=0.75]]
	Chunk stats: Client Chunk Cache: 361, 225
	Level dimension: minecraft:overworld
	Level name: MpServer
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: {}
	Level spawn location: World: (-64,63,0), Chunk: (at 0,3,0 in -4,0; contains blocks -64,0,0 to -49,255,15), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 7711 game time, 7711 day time
	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
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at dlv.a(SourceFile:421)
	at czq.b(SourceFile:1913)
	at czq.b(SourceFile:417)
	at net.minecraft.client.main.Main.main(SourceFile:194)

-- System Details --
Details:
	Minecraft Version: 19w35a
	Minecraft Version ID: 19w35a
	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: 1250311504 bytes (1192 MB) / 1845493760 bytes (1760 MB) up to 2147483648 bytes (2048 MB)
	CPUs: 8
	JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
	Launched Version: 19w35a
	Backend library: LWJGL version 3.2.2 build 10
	Backend API: GeForce 840M/PCIe/SSE2 GL version 4.6.0 NVIDIA 436.15, NVIDIA Corporation
	GL Caps: Using framebuffer using OpenGL 3.0
	Using VBOs: Yes
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: vanilla
	Current Language: English (Canada)
	CPU: 8x Intel(R) Core(TM) i7-4710HQ CPU @ 2.50GHz