The game crashes when I change the world settings height to a number outside the dimension height range. It should probably give you an error with the datapack instead of crashing the game.

The crash report and datapack was updated for 1.20.4
Here is the crash report.

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

Time: 2023-12-06 19:32:23
Description: Exception generating new chunk

java.lang.NullPointerException: Cannot invoke "cub.a(int)" because "$$24" is null
at ebu.a(SourceFile:214)
at ebu.a(SourceFile:139)
at dzg.b(SourceFile:199)
at dzg.a(SourceFile:125)
at dle.a(SourceFile:513)
at dle.a(SourceFile:495)
at java.base/java.lang.Iterable.forEach(Iterable.java:75)
at dle.a(SourceFile:448)
at dli.f(SourceFile:54)
at dli.a(SourceFile:252)
at amn.a(SourceFile:671)
at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
at amn.a(SourceFile:660)
at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1150)
at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:482)
at amp.b(SourceFile:62)
at biu.h(SourceFile:91)
at biu.a(SourceFile:146)
at biu.run(SourceFile:102)
at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1395)
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)

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

– Head –
Thread: Server thread
Stacktrace:
at ebu.a(SourceFile:214)
at ebu.a(SourceFile:139)
at dzg.b(SourceFile:199)
at dzg.a(SourceFile:125)
at dle.a(SourceFile:513)
at dle.a(SourceFile:495)
at java.base/java.lang.Iterable.forEach(Iterable.java:75)
at dle.a(SourceFile:448)
at dli.f(SourceFile:54)
at dli.a(SourceFile:252)
at amn.a(SourceFile:671)
at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
at amn.a(SourceFile:660)
at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1150)
at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:482)
at amp.b(SourceFile:62)
at biu.h(SourceFile:91)
at biu.a(SourceFile:146)

– Chunk to be generated –
Details:
Location: 22,5
Position hash: 21474836502
Generator: dot@210361e2
Stacktrace:
at amn.a(SourceFile:671)
at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
at amn.a(SourceFile:660)
at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1150)
at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:482)
at amp.b(SourceFile:62)
at biu.h(SourceFile:91)
at biu.a(SourceFile:146)
at biu.run(SourceFile:102)
at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1395)
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)

– Affected level –
Details:
All players: 0 total; []
Chunk stats: 625
Level dimension: minecraft:overworld
Level spawn location: World: (312,64,232), Section: (at 8,0,8 in 19,4,14; chunk contains blocks 304,-64,224 to 319,319,239), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,-64,0 to 511,319,511)
Level time: 0 game time, 0 day time
Level name: New World
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Known server brands: vanilla
Removed feature flags:
Level was modded: false
Level storage version: 0x04ABD - Anvil
Loaded entity count: 0
Stacktrace:
at and.a(SourceFile:1681)
at net.minecraft.server.MinecraftServer.a(SourceFile:382)
at net.minecraft.server.MinecraftServer.u_(SourceFile:330)
at gir.e(SourceFile:69)
at net.minecraft.server.MinecraftServer.w(SourceFile:650)
at net.minecraft.server.MinecraftServer.a(SourceFile:270)
at java.base/java.lang.Thread.run(Thread.java:833)

– System Details –
Details:
Minecraft Version: 1.20.3
Minecraft Version ID: 1.20.3
Operating System: Windows 11 (amd64) version 10.0
Java Version: 17.0.8, Microsoft
Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Microsoft
Memory: 943977624 bytes (900 MiB) / 2650800128 bytes (2528 MiB) up to 6442450944 bytes (6144 MiB)
CPUs: 6
Processor Vendor: GenuineIntel
Processor Name: 11th Gen Intel(R) Core(TM) i5-11600KF @ 3.90GHz
Identifier: Intel64 Family 6 Model 167 Stepping 1
Microarchitecture: Rocket Lake
Frequency (GHz): 3.91
Number of physical packages: 1
Number of physical CPUs: 3
Number of logical CPUs: 6
Graphics card #0 name: NVIDIA GeForce RTX 2060
Graphics card #0 vendor: NVIDIA (0x10de)
Graphics card #0 VRAM (MB): 4095.00
Graphics card #0 deviceId: 0x1f08
Graphics card #0 versionInfo: DriverVersion=31.0.15.4629
Memory slot #0 capacity (MB): 8192.00
Memory slot #0 clockSpeed (GHz): 3.20
Memory slot #0 type: DDR4
Memory slot #1 capacity (MB): 8192.00
Memory slot #1 clockSpeed (GHz): 3.20
Memory slot #1 type: DDR4
Virtual memory max (MB): 32251.72
Virtual memory used (MB): 15294.16
Swap memory total (MB): 16000.00
Swap memory used (MB): 103.95
JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx6G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
Server Running: true
Player Count: 0 / 8; []
Data Packs: vanilla, file/cause_to_crash
Enabled Feature Flags: minecraft:vanilla
World Generation: Experimental
Type: Integrated Server (map_client.txt)
Is Modded: Probably not. Client jar signature and brand is untouched; Server jar signature and brand is untouched
Launched Version: 1.20.3