Server crashes after entering the outer end.. (modded) java.lang.NullPointerException: Feature placement

[HckdMarv]

Hello,

My modded server always crashes after 10 seconds when somebody is in the outer end. I tried many things to fix this but nothing has worked so far..

Here is the crash report:

---- Minecraft Crash Report ----

Time: 7/13/21, 7:15 PM
Description: Feature placement

java.lang.NullPointerException: Feature placement
    at mod.beethoven92.betterendforge.common.world.generator.BiomePicker.getBiome(BiomePicker.java:47) ~[betterendforge:1.16.4-1.6.0] {re:classloading}
    at mod.beethoven92.betterendforge.common.init.ModBiomes.getCaveBiome(ModBiomes.java:350) ~[betterendforge:1.16.4-1.6.0] {re:mixin,pl:runtimedistcleaner:A,re:classloading,pl:runtimedistcleaner:A}
    at mod.beethoven92.betterendforge.common.world.feature.caves.EndCaveFeature.generate(EndCaveFeature.java:68) ~[betterendforge:1.16.4-1.6.0] {re:classloading}
    at mod.beethoven92.betterendforge.common.world.feature.caves.EndCaveFeature.func_241855_a(EndCaveFeature.java:28) ~[betterendforge:1.16.4-1.6.0] {re:classloading}
    at net.minecraft.world.gen.feature.ConfiguredFeature.func_242765_a(SourceFile:55) ~[?:?] {re:classloading}
    at net.minecraft.world.gen.feature.DecoratedFeature.func_242772_a(SourceFile:23) ~[?:?] {re:classloading}
    at java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411) ~[?:?] {}
    at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658) ~[?:?] {}
    at net.minecraft.world.gen.feature.DecoratedFeature.func_241855_a(SourceFile:22) ~[?:?] {re:classloading}
    at net.minecraft.world.gen.feature.DecoratedFeature.func_241855_a(SourceFile:14) ~[?:?] {re:classloading}
    at net.minecraft.world.gen.feature.ConfiguredFeature.func_242765_a(SourceFile:55) ~[?:?] {re:classloading}
    at net.minecraft.world.biome.Biome.func_242427_a(Biome.java:254) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.world.gen.ChunkGenerator.func_230351_a_(SourceFile:220) ~[?:?] {re:mixin,re:classloading,pl:mixin:APP:repurposed_structures.mixins.json:ChunkGeneratorAccessor,pl:mixin:APP:repurposed_structures.mixins.json:ChunkGeneratorMixin,pl:mixin:A}
    at net.minecraft.world.chunk.ChunkStatus.func_222605_b(ChunkStatus.java:77) ~[?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:byg.mixins.json:common.world.ChunkStatusMixin,pl:mixin:APP:bettercaves.mixins.json:ChunkStatusMixin,pl:mixin:A}
    at net.minecraft.world.chunk.ChunkStatus.func_223198_a(ChunkStatus.java:198) ~[?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:byg.mixins.json:common.world.ChunkStatusMixin,pl:mixin:APP:bettercaves.mixins.json:ChunkStatusMixin,pl:mixin:A}
    at net.minecraft.world.server.ChunkManager.lambda$null$18(ChunkManager.java:524) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[?:?] {re:classloading}
    at net.minecraft.world.server.ChunkManager.lambda$scheduleChunkGeneration$20(ChunkManager.java:522) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1072) ~[?:?] {}
    at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478) ~[?:?] {}
    at net.minecraft.world.chunk.ChunkTaskPriorityQueueSorter.func_219083_b(SourceFile:58) ~[?:?] {re:classloading}
    at net.minecraft.util.concurrent.DelegatedTaskExecutor.func_213148_e(SourceFile:94) ~[?:?] {re:classloading}
    at net.minecraft.util.concurrent.DelegatedTaskExecutor.func_213145_a(SourceFile:137) ~[?:?] {re:classloading}
    at net.minecraft.util.concurrent.DelegatedTaskExecutor.run(SourceFile:105) ~[?:?] {re:classloading}
    at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1426) ~[?:?] {}
    at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290) ~[?:?] {}
    at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020) ~[?:?] {}
    at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656) ~[?:?] {}
    at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594) ~[?:?] {}
    at 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 mod.beethoven92.betterendforge.common.world.generator.BiomePicker.getBiome(BiomePicker.java:47) ~[betterendforge:1.16.4-1.6.0] {re:classloading}
    at mod.beethoven92.betterendforge.common.init.ModBiomes.getCaveBiome(ModBiomes.java:350) ~[betterendforge:1.16.4-1.6.0] {re:mixin,pl:runtimedistcleaner:A,re:classloading,pl:runtimedistcleaner:A}
    at mod.beethoven92.betterendforge.common.world.feature.caves.EndCaveFeature.generate(EndCaveFeature.java:68) ~[betterendforge:1.16.4-1.6.0] {re:classloading}
    at mod.beethoven92.betterendforge.common.world.feature.caves.EndCaveFeature.func_241855_a(EndCaveFeature.java:28) ~[betterendforge:1.16.4-1.6.0] {re:classloading}
    at net.minecraft.world.gen.feature.ConfiguredFeature.func_242765_a(SourceFile:55) ~[?:?] {re:classloading}
    at net.minecraft.world.gen.feature.DecoratedFeature.func_242772_a(SourceFile:23) ~[?:?] {re:classloading}
    at java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411) ~[?:?] {}
    at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658) ~[?:?] {}
    at net.minecraft.world.gen.feature.DecoratedFeature.func_241855_a(SourceFile:22) ~[?:?] {re:classloading}
    at net.minecraft.world.gen.feature.DecoratedFeature.func_241855_a(SourceFile:14) ~[?:?] {re:classloading}
    at net.minecraft.world.gen.feature.ConfiguredFeature.func_242765_a(SourceFile:55) ~[?:?] {re:classloading}
-- Feature --
Details:
    Id: minecraft:decorated
    Config: < DecoratedFeatureConfig [betterendforge:round_cave | [minecraft:chance net.minecraft.world.gen.placement.ChanceConfig@56b0001f]] >
    Description: < DecoratedFeature [minecraft:decorated] >
Stacktrace:
    at net.minecraft.world.biome.Biome.func_242427_a(Biome.java:254) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A}


-- Generation --
Details:
    CenterX: 28
    CenterZ: 67
    Seed: -2127109139673382086
    Biome: net.minecraft.world.biome.Biome@5342414b
Stacktrace:
    at net.minecraft.world.gen.ChunkGenerator.func_230351_a_(SourceFile:220) ~[?:?] {re:mixin,re:classloading,pl:mixin:APP:repurposed_structures.mixins.json:ChunkGeneratorAccessor,pl:mixin:APP:repurposed_structures.mixins.json:ChunkGeneratorMixin,pl:mixin:A}
    at net.minecraft.world.chunk.ChunkStatus.func_222605_b(ChunkStatus.java:77) ~[?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:byg.mixins.json:common.world.ChunkStatusMixin,pl:mixin:APP:bettercaves.mixins.json:ChunkStatusMixin,pl:mixin:A}
    at net.minecraft.world.chunk.ChunkStatus.func_223198_a(ChunkStatus.java:198) ~[?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:byg.mixins.json:common.world.ChunkStatusMixin,pl:mixin:APP:bettercaves.mixins.json:ChunkStatusMixin,pl:mixin:A}


-- Chunk to be generated --
Details:
    Location: 28,67
    Position hash: 287762808860
    Generator: net.minecraft.world.gen.NoiseChunkGenerator@7e4e0a12
Stacktrace:
    at net.minecraft.world.server.ChunkManager.lambda$null$18(ChunkManager.java:524) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[?:?] {re:classloading}
    at net.minecraft.world.server.ChunkManager.lambda$scheduleChunkGeneration$20(ChunkManager.java:522) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1072) ~[?:?] {}
    at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478) ~[?:?] {}
    at net.minecraft.world.chunk.ChunkTaskPriorityQueueSorter.func_219083_b(SourceFile:58) ~[?:?] {re:classloading}
    at net.minecraft.util.concurrent.DelegatedTaskExecutor.func_213148_e(SourceFile:94) ~[?:?] {re:classloading}
    at net.minecraft.util.concurrent.DelegatedTaskExecutor.func_213145_a(SourceFile:137) ~[?:?] {re:classloading}
    at net.minecraft.util.concurrent.DelegatedTaskExecutor.run(SourceFile:105) ~[?:?] {re:classloading}


-- Affected level --
Details:
    All players: 1 total; [ServerPlayerEntity['Niko222444'/76, l='ServerLevel[Modded4]', x=363.67, y=35.16, z=1044.86]]
    Chunk stats: ServerChunkCache: 1080
    Level dimension: minecraft:the_end
    Derived: true
    Level spawn location: World: (113,63,71), Chunk: (at 1,3,7 in 7,4; contains blocks 112,0,64 to 127,255,79), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
    Level time: 713582 game time, 482693 day time
    Level name: Modded4
    Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
    Level weather: Rain time: 9779 (now: true), thunder time: 9970 (now: false)
    Known server brands: forge
    Level was modded: true
    Level storage version: 0x04ABD - Anvil
Stacktrace:
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:854) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:byg.mixins.json:server.MixinMinecraftServer,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:291) ~[?:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:787) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:byg.mixins.json:server.MixinMinecraftServer,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:642) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:byg.mixins.json:server.MixinMinecraftServer,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:232) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:byg.mixins.json:server.MixinMinecraftServer,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:A,pl:runtimedistcleaner:A}
    at java.lang.Thread.run(Thread.java:834) [?:?] {}


-- System Details --
Details:
    Minecraft Version: 1.16.5
    Minecraft Version ID: 1.16.5
    Operating System: Linux (amd64) version 4.19.0-17-amd64
    Java Version: 11.0.9, Alpine
    Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Alpine
    Memory: 316613528 bytes (301 MB) / 1558847488 bytes (1486 MB) up to 1621819392 bytes (1546 MB)
    CPUs: 1
    JVM Flags: 3 total; -Xms800M -Xmx1600M -XX:UseSSE=3
    ModLauncher: 8.0.9+86+master.3cf110c
    ModLauncher launch target: fmlserver
    ModLauncher naming: srg
    ModLauncher services: 
        /mixin-0.8.2.jar mixin PLUGINSERVICE 
        /eventbus-4.0.0.jar eventbus PLUGINSERVICE 
        /server.jar object_holder_definalize PLUGINSERVICE 
        /server.jar runtime_enum_extender PLUGINSERVICE 
        /server.jar capability_inject_definalize PLUGINSERVICE 
        /accesstransformers-3.0.1.jar accesstransformer PLUGINSERVICE 
        /server.jar runtimedistcleaner PLUGINSERVICE 
        /mixin-0.8.2.jar mixin TRANSFORMATIONSERVICE 
        /server.jar fml TRANSFORMATIONSERVICE 
    FML: 36.1
    Forge: net.minecraftforge:36.1.32
    FML Language Providers: 
        [email protected]
        minecraft@1
    Mod List: 
        forge-1.16.5-36.1.32-server.jar                   |Minecraft                     |minecraft                     |1.16.5              |DONE      |Manifest: NOSIGNATURE
        YungsApi-1.16.4-Forge-6.jar                       |YUNG's API                    |yungsapi                      |1.16.4-Forge-6      |DONE      |Manifest: NOSIGNATURE
        repurposed_structures-1.16.5-2.7.8-forge.jar      |Repurposed Structures         |repurposed_structures         |1.16.5-2.7.8-forge  |DONE      |Manifest: NOSIGNATURE
        sophisticatedbackpacks-1.16.4-2.5.0.271.jar       |Sophisticated Backpacks       |sophisticatedbackpacks        |property(class java.|DONE      |Manifest: NOSIGNATURE
        Jade-1.16.4-2.7.1.jar                             |Jade                          |jade                          |2.7.1               |DONE      |Manifest: NOSIGNATURE
        AI-Improvements-1.16.2-0.3.0.jar                  |AI-Improvements               |aiimprovements                |0.3.0               |DONE      |Manifest: NOSIGNATURE
        jei-1.16.5-7.7.0.107.jar                          |Just Enough Items             |jei                           |7.7.0.107           |DONE      |Manifest: NOSIGNATURE
        byg-1.2.9.jar                                     |Oh The Biomes You'll Go       |byg                           |1.2.9               |DONE      |Manifest: NOSIGNATURE
        forge-1.16.5-36.1.32-universal.jar                |Forge                         |forge                         |36.1.32             |DONE      |Manifest: 22:af:21:d8:19:82:7f:93:94:fe:2b:ac:b7:e4:41:57:68:39:87:b1:a7:5c:c6:44:f9:25:74:21:14:f5:0d:90
        AppleSkin-mc1.16.2-forge-1.0.14.jar               |AppleSkin                     |appleskin                     |1.0.14              |DONE      |Manifest: NOSIGNATURE
        BetterCaves-Forge-1.16.4-1.1.2.jar                |YUNG's Better Caves           |bettercaves                   |1.16.4-1.1.2        |DONE      |Manifest: NOSIGNATURE
        Xaeros_Minimap_21.12.5_Forge_1.16.5.jar           |Xaero's Minimap               |xaerominimap                  |21.12.5             |DONE      |Manifest: NOSIGNATURE
        subwild-1.2.1.jar                                 |Subterranean Wilderness       |subwild                       |1.2.1               |DONE      |Manifest: NOSIGNATURE
        betterendforge-1.16.4-1.6.0.jar                   |BetterEnd Forge               |betterendforge                |1.16.4-1.6.0        |DONE      |Manifest: NOSIGNATURE
        gravestone-1.16.5-1.0.6.jar                       |Gravestone Mod                |gravestone                    |1.16.5-1.0.6        |DONE      |Manifest: NOSIGNATURE
        diet-forge-1.16.5-0.34.jar                        |Diet                          |diet                          |1.16.5-0.34         |DONE      |Manifest: NOSIGNATURE
        dungeonsarise1.16.5-1.2.72a.jar                   |Dungeons Arise                |dungeons_arise                |1.2.72a             |DONE      |Manifest: NOSIGNATURE
        AutoRegLib-1.6-49.jar                             |AutoRegLib                    |autoreglib                    |1.6-49              |DONE      |Manifest: NOSIGNATURE
        Quark-r2.4-314.jar                                |Quark                         |quark                         |r2.4-314            |DONE      |Manifest: NOSIGNATURE
    Crash Report UUID: aab9fdb4-59a0-43e8-9e61-89977c5064b3
    Player Count: 1 / 5; [ServerPlayerEntity['Niko222444'/76, l='ServerLevel[Modded4]', x=363.67, y=35.16, z=1044.86]]
    Data Packs: vanilla, mod:yungsapi, mod:repurposed_structures, mod:sophisticatedbackpacks, mod:jade, mod:aiimprovements, mod:jei, mod:byg, mod:forge, mod:appleskin, mod:bettercaves (incompatible), mod:xaerominimap, mod:subwild, mod:betterendforge, mod:gravestone, mod:diet, mod:dungeons_arise, mod:autoreglib (incompatible), mod:quark (incompatible)
    Is Modded: Definitely; Server brand changed to 'forge'
    Type: Dedicated Server (map_server.txt)

Please help me

[Luis_ST]

talk to the mod author, of betterendforge