---- Minecraft Crash Report ----
// My bad.

Time: 5/15/21, 2:45 AM
Description: Exception generating new chunk

java.util.ConcurrentModificationException
	at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1225)
	at dbw.b(SourceFile:63)
	at dbw.a(SourceFile:53)
	at dax.<init>(SourceFile:43)
	at dam$a.<init>(SourceFile:200)
	at dam.a(SourceFile:187)
	at dam.a(SourceFile:128)
	at dal$a.a(SourceFile:40)
	at dal$a.a(SourceFile:31)
	at ctk.a(SourceFile:268)
	at cqw.a(SourceFile:36)
	at clv.a(SourceFile:309)
	at clv.a(SourceFile:292)
	at clx.e(SourceFile:53)
	at clx.a(SourceFile:231)
	at aay.a(SourceFile:563)
	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
	at aay.a(SourceFile:557)
	at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1146)
	at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478)
	at aba.b(SourceFile:58)
	at aqh.f(SourceFile:92)
	at aqh.a(SourceFile:132)
	at aqh.run(SourceFile:100)
	at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1434)
	at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:295)
	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1016)
	at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1665)
	at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1598)
	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)


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

-- Head --
Thread: Server thread
Stacktrace:
	at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1225)
	at dbw.b(SourceFile:63)
	at dbw.a(SourceFile:53)
	at dax.<init>(SourceFile:43)
	at dam$a.<init>(SourceFile:200)
	at dam.a(SourceFile:187)
	at dam.a(SourceFile:128)
	at dal$a.a(SourceFile:40)
	at dal$a.a(SourceFile:31)
	at ctk.a(SourceFile:268)
	at cqw.a(SourceFile:36)
	at clv.a(SourceFile:309)
	at clv.a(SourceFile:292)
	at clx.e(SourceFile:53)
	at clx.a(SourceFile:231)

-- Chunk to be generated --
Details:
	Location: 120,-195
	Position hash: -837518622600
	Generator: cpb@5acd793a
Stacktrace:
	at aay.a(SourceFile:563)
	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
	at aay.a(SourceFile:557)
	at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1146)
	at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478)
	at aba.b(SourceFile:58)
	at aqh.f(SourceFile:92)
	at aqh.a(SourceFile:132)
	at aqh.run(SourceFile:100)

-- Affected level --
Details:
	All players: 3 total; [abm['Nardwe'/141945, l='ServerLevel[centuralus_clean]', x=2196.50, y=63.00, z=-2973.50], abm['Bonesdog'/226111, l='ServerLevel[centuralus_clean]', x=2196.50, y=63.00, z=-2973.50], abm['treehouser'/277456, l='ServerLevel[centuralus_clean]', x=2197.56, y=63.00, z=-2972.26]]
	Chunk stats: 4103
	Level dimension: minecraft:overworld
	Level spawn location: World: (-14,66,0), Section: (at 2,2,0 in -1,4,0; chunk 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)
	Level time: 48925829 game time, 4407709 day time
	Level name: centuralus_clean
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
	Level weather: Rain time: 5903 (now: true), thunder time: 15355 (now: false)
	Known server brands: vanilla
	Level was modded: false
	Level storage version: 0x04ABD - Anvil
Stacktrace:
	at net.minecraft.server.MinecraftServer.b(SourceFile:879)
	at aam.b(SourceFile:312)
	at net.minecraft.server.MinecraftServer.a(SourceFile:816)
	at net.minecraft.server.MinecraftServer.x(SourceFile:674)
	at net.minecraft.server.MinecraftServer.a(SourceFile:261)
	at java.base/java.lang.Thread.run(Thread.java:831)

-- System Details --
Details:
	Minecraft Version: 21w19a
	Minecraft Version ID: 21w19a
	Operating System: Linux (amd64) version 5.4.0-70-generic
	Java Version: 16.0.1, Private Build
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), Private Build
	Memory: 10916376800 bytes (10410 MB) / 21474836480 bytes (20480 MB) up to 21474836480 bytes (20480 MB)
	CPUs: 4
	JVM Flags: 2 total; -Xms20G -Xmx20G
	Player Count: 3 / 70; [abm['Nardwe'/141945, l='ServerLevel[centuralus_clean]', x=2196.50, y=63.00, z=-2973.50], abm['Bonesdog'/226111, l='ServerLevel[centuralus_clean]', x=2196.50, y=63.00, z=-2973.50], abm['treehouser'/277456, l='ServerLevel[centuralus_clean]', x=2197.56, y=63.00, z=-2972.26]]
	Data Packs: vanilla, file/core_datapack (incompatible), file/sittable_stairs (incompatible), file/sittable_stairs_base (incompatible), file/timber (incompatible)
	Is Modded: Unknown (can't tell)
	Type: Dedicated Server (map_server.txt)