---- Minecraft Crash Report ----
// Sorry :(

Time: 18/06/19 18:23
Description: Exception in server tick loop

java.util.concurrent.CompletionException: m: Exception generating new chunk
	at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273)
	at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:280)
	at java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:961)
	at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:926)
	at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442)
	at uw.b(SourceFile:57)
	at uw$$Lambda$2552/1000983856.run(Unknown Source)
	at agq.e(SourceFile:83)
	at agq.a(SourceFile:123)
	at agq.run(SourceFile:91)
	at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1402)
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1689)
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
Caused by: m: Exception generating new chunk
	at uu.a(SourceFile:551)
	at uu$$Lambda$2676/425530531.apply(Unknown Source)
	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
	at uu.a(SourceFile:534)
	at uu$$Lambda$2673/107663695.apply(Unknown Source)
	at java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:952)
	... 12 more
Caused by: java.lang.NullPointerException
	at ati.f(SourceFile:86)
	at ath.c(SourceFile:232)
	at ail.<init>(SourceFile:234)
	at ath.<init>(SourceFile:35)
	at ath.<init>(SourceFile:39)
	at ati.<init>(SourceFile:50)
	at cia$a.a(SourceFile:97)
	at cit.a(SourceFile:73)
	at cir.a(SourceFile:66)
	at cep.a(SourceFile:69)
	at cag.a(SourceFile:36)
	at cgz.a(SourceFile:85)
	at cgz$$Lambda$2942/947320868.accept(Unknown Source)
	at java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:419)
	at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580)
	at cgz.a(SourceFile:84)
	at cgb.a(SourceFile:35)
	at cao.a(SourceFile:20)
	at cao.a(SourceFile:13)
	at cag.a(SourceFile:36)
	at bij.a(SourceFile:385)
	at bxd.a(SourceFile:126)
	at bxh.c(SourceFile:83)
	at bxh$$Lambda$1045/1790657739.doWork(Unknown Source)
	at bxh.a(SourceFile:217)
	at uu.a(SourceFile:540)
	... 17 more


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

-- System Details --
Details:
	Minecraft Version: 1.14.3 Pre-Release 3
	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: 1274467504 bytes (1215 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
	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
	Player Count: 1 / 8; [vj['Pleb_of_Darkness'/168, l='1.14', x=939.44, y=96.53, z=647.68]]
	Data Packs: vanilla
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.