Playing with the datapack you released which enables the new world height, new caves etc. but game crashes everytime i come to overworld from the nether.

Crash Report:

---- Minecraft Crash Report -------- Minecraft Crash Report ----// Don't be sad, have a hug! <3
Time: 24.04.2021 14:43Description: Unexpected error
java.lang.IllegalStateException: Missing: ResourceKey[minecraft:worldgen/biome / minecraft:plains] at gr.d(SourceFile:405) at eib.a(SourceFile:543) at bwa.b(SourceFile:67) at bxf.a(SourceFile:58) at bwy.a(SourceFile:32) at bwa.u(SourceFile:39) at eib.a(SourceFile:320) at eib.c(SourceFile:275) at duq.q(SourceFile:1656) at duq.e(SourceFile:1042) at duq.e(SourceFile:700) at net.minecraft.client.main.Main.main(SourceFile:217)

A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
– Head --Thread: Render threadStacktrace: at gr.d(SourceFile:405) at eib.a(SourceFile:543) at bwa.b(SourceFile:67) at bxf.a(SourceFile:58) at bwy.a(SourceFile:32) at bwa.u(SourceFile:39) at eib.a(SourceFile:320) at eib.c(SourceFile:275)
– Affected level --Details: All players: 1 total; [ekz['FenerliSucuk'/157, l='ClientLevel', x=-432.50, y=-34.77, z=632.50]] Chunk stats: 1225, 0 Level dimension: minecraft:overworld Level spawn location: World: (240,65,240), Section: (at 0,1,0 in 15,4,15; chunk contains blocks 240,-64,240 to 255,319,255), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,-64,0 to 511,319,511) Level time: 198618 game time, 198618 day time Server brand: vanilla Server type: Integrated singleplayer serverStacktrace: at eib.a(SourceFile:370) at duq.c(SourceFile:2259) at duq.e(SourceFile:724) at net.minecraft.client.main.Main.main(SourceFile:217)
– System Details --Details: Minecraft Version: 21w16a Minecraft Version ID: 21w16a 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: 657266880 bytes (626 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB) CPUs: 6 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: 21w16a Backend library: LWJGL version 3.2.2 build 10 Backend API: GeForce GTX 1050 Ti/PCIe/SSE2 GL version 3.2.0 NVIDIA 461.92, NVIDIA Corporation GL Caps: Using framebuffer using OpenGL 3.2 Using VBOs: Yes Is Modded: Probably not. Jar signature remains and client brand is untouched. Type: Client (map_client.txt) Graphics mode: fancy Resource Packs:  Current Language: Türkçe (Türkiye) CPU: 6x Intel(R) Core(TM) i5-9400F CPU @ 2.90GHz