From the crash report the game is crashing because it's trying to generate a village.

As far as I could see it was a badlands biome, and a jungle biome behind, so villages would be out of the question.

My guess (not having fiddled through the code) is that maybe the villager type is not set in this case scenario?

In any case the crash report should have all the elements to reproduce this crash (crash happened 3 times so i guess I'll just avoid that area for now)

Sorry if it's a duplicate, I tried sieveing through de different issues and didn't find this one.

---- Minecraft Crash Report ----
// Don't be sad, have a hug! <3

Time: 13/11/2021 07:59
Description: Feature placement

java.lang.NullPointerException: Cannot invoke "ddm.a(cao, cps, java.util.Random, gh)" because the return value of "java.util.function.Supplier.get()" is null
    at dbi.a(SourceFile:75)
    at dem.a(SourceFile:88)
    at dem.a(SourceFile:84)
    at dev.a(SourceFile:62)
    at cps.a(SourceFile:259)
    at com.google.common.collect.ImmutableList.forEach(ImmutableList.java:422)
    at cps.a(SourceFile:258)
    at cpu.c(SourceFile:134)
    at cpu.a(SourceFile:274)
    at acp.a(SourceFile:627)
    at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
    at acp.a(SourceFile:621)
    at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1146)
    at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478)
    at acr.b(SourceFile:58)
    at aud.g(SourceFile:91)
    at aud.a(SourceFile:146)
    at aud.run(SourceFile:102)
    at java.base/java.util.concurrent.ForkJoinTask$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 dbi.a(SourceFile:75)
    at dem.a(SourceFile:88)
    at dem.a(SourceFile:84)
    at dev.a(SourceFile:62)
    at cps.a(SourceFile:259)
    at com.google.common.collect.ImmutableList.forEach(ImmutableList.java:422)

– Feature –
Details:
    Description: ResourceKey[minecraft:worldgen/structure_feature / minecraft:village]

– Generation –
Details:
    CenterX: -50
    CenterZ: 113
    Seed: 5561137194577860831
Stacktrace:
    at cps.a(SourceFile:258)
    at cpu.c(SourceFile:134)
    at cpu.a(SourceFile:274)

– Chunk to be generated –
Details:
    Location: -50,113
    Position hash: 489626271694
    Generator: csx@a5edcb4
Stacktrace:
    at acp.a(SourceFile:627)
    at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
    at acp.a(SourceFile:621)
    at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1146)
    at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478)
    at acr.b(SourceFile:58)
    at aud.g(SourceFile:91)
    at aud.a(SourceFile:146)
    at aud.run(SourceFile:102)

– Affected level –
Details:
    All players: 1 total; [add['Stanmarsh77'/129, l='ServerLevel[Cavetest]', x=-378.74, y=111.00, z=1670.23]]
    Chunk stats: 7830
    Level dimension: minecraft:overworld
    Level spawn location: World: (0,94,0), Section: (at 0,14,0 in 0,5,0; chunk contains blocks 0,-64,0 to 15,319,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,-64,0 to 511,319,511)
    Level time: 1016031 game time, 1561523 day time
    Level name: Cavetest
    Level game mode: Game mode: survival (ID 0). Hardcore: true. Cheats: false
    Level weather: Rain time: 43419 (now: false), thunder time: 5282 (now: true)
    Known server brands: vanilla
    Level was modded: false
    Level storage version: 0x04ABD - Anvil
Stacktrace:
    at net.minecraft.server.MinecraftServer.b(SourceFile:879)
    at net.minecraft.server.MinecraftServer.a(SourceFile:820)
    at fcg.a(SourceFile:99)
    at net.minecraft.server.MinecraftServer.w(SourceFile:684)
    at net.minecraft.server.MinecraftServer.a(SourceFile:270)
    at java.base/java.lang.Thread.run(Thread.java:831)

– System Details –
Details:
    Minecraft Version: 1.18 Pre-release 1
    Minecraft Version ID: 1.18-pre1
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 16.0.1, Microsoft
    Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Microsoft
    Memory: 580384968 bytes (553 MiB) / 4865392640 bytes (4640 MiB) up to 8589934592 bytes (8192 MiB)
    CPUs: 24
    Processor Vendor: AuthenticAMD
    Processor Name: AMD Ryzen 9 3900X 12-Core Processor            
    Identifier: AuthenticAMD Family 23 Model 113 Stepping 0
    Microarchitecture: Zen 2
    Frequency (GHz): 3,79
    Number of physical packages: 1
    Number of physical CPUs: 12
    Number of logical CPUs: 24
    Graphics card #0 name: NVIDIA GeForce RTX 3090
    Graphics card #0 vendor: NVIDIA (0x10de)
    Graphics card #0 VRAM (MB): 4095,00
    Graphics card #0 deviceId: 0x2204
    Graphics card #0 versionInfo: DriverVersion=27.21.14.6140
    Memory slot #0 capacity (MB): 16384,00
    Memory slot #0 clockSpeed (GHz): 2,13
    Memory slot #0 type: DDR4
    Memory slot #1 capacity (MB): 16384,00
    Memory slot #1 clockSpeed (GHz): 2,13
    Memory slot #1 type: DDR4
    Virtual memory max (MB): 56998,23
    Virtual memory used (MB): 50471,51
    Swap memory total (MB): 24316,48
    Swap memory used (MB): 552,26
    JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx8G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
    Player Count: 1 / 8; [add['Stanmarsh77'/129, l='ServerLevel[Cremettre]', x=-378.74, y=111.00, z=1670.23]]
    Data Packs: vanilla
    Type: Integrated Server (map_client.txt)
    Is Modded: Probably not. Client jar signature and brand is untouched; Server jar signature and brand is untouched