---- Minecraft Crash Report ---- // My bad. Time: 5/15/21, 2:45 AM Description: Exception generating new chunk java.util.ConcurrentModificationException at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1225) at net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager.net.minecraft.world.level.levelgen.structure.templatesystem.StructureTemplate get(net.minecraft.resources.ResourceLocation)(StructureManager.java:63) at net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager.net.minecraft.world.level.levelgen.structure.templatesystem.StructureTemplate getOrCreate(net.minecraft.resources.ResourceLocation)(StructureManager.java:53) at net.minecraft.world.level.levelgen.structure.TemplateStructurePiece.void (net.minecraft.world.level.levelgen.feature.StructurePieceType,int,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.resources.ResourceLocation,java.lang.String,net.minecraft.world.level.levelgen.structure.templatesystem.StructurePlaceSettings,net.minecraft.core.BlockPos)(TemplateStructurePiece.java:43) at net.minecraft.world.level.levelgen.structure.OceanRuinPieces$OceanRuinPiece.void (net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.resources.ResourceLocation,net.minecraft.core.BlockPos,net.minecraft.world.level.block.Rotation,float,net.minecraft.world.level.levelgen.structure.OceanRuinFeature$Type,boolean)(OceanRuinPieces.java:200) at net.minecraft.world.level.levelgen.structure.OceanRuinPieces.void addPiece(net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.core.BlockPos,net.minecraft.world.level.block.Rotation,net.minecraft.world.level.levelgen.structure.StructurePieceAccessor,java.util.Random,net.minecraft.world.level.levelgen.feature.configurations.OceanRuinConfiguration,boolean,float)(OceanRuinPieces.java:187) at net.minecraft.world.level.levelgen.structure.OceanRuinPieces.void addPieces(net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.core.BlockPos,net.minecraft.world.level.block.Rotation,net.minecraft.world.level.levelgen.structure.StructurePieceAccessor,java.util.Random,net.minecraft.world.level.levelgen.feature.configurations.OceanRuinConfiguration)(OceanRuinPieces.java:128) at net.minecraft.world.level.levelgen.structure.OceanRuinFeature$OceanRuinStart.void generatePieces(net.minecraft.core.RegistryAccess,net.minecraft.world.level.chunk.ChunkGenerator,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.world.level.ChunkPos,net.minecraft.world.level.biome.Biome,net.minecraft.world.level.levelgen.feature.configurations.OceanRuinConfiguration,net.minecraft.world.level.LevelHeightAccessor)(OceanRuinFeature.java:40) at net.minecraft.world.level.levelgen.structure.OceanRuinFeature$OceanRuinStart.void generatePieces(net.minecraft.core.RegistryAccess,net.minecraft.world.level.chunk.ChunkGenerator,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.world.level.ChunkPos,net.minecraft.world.level.biome.Biome,net.minecraft.world.level.levelgen.feature.configurations.FeatureConfiguration,net.minecraft.world.level.LevelHeightAccessor)(OceanRuinFeature.java:31) at net.minecraft.world.level.levelgen.feature.StructureFeature.net.minecraft.world.level.levelgen.structure.StructureStart generate(net.minecraft.core.RegistryAccess,net.minecraft.world.level.chunk.ChunkGenerator,net.minecraft.world.level.biome.BiomeSource,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,long,net.minecraft.world.level.ChunkPos,net.minecraft.world.level.biome.Biome,int,net.minecraft.world.level.levelgen.WorldgenRandom,net.minecraft.world.level.levelgen.feature.configurations.StructureFeatureConfiguration,net.minecraft.world.level.levelgen.feature.configurations.FeatureConfiguration,net.minecraft.world.level.LevelHeightAccessor)(StructureFeature.java:268) at net.minecraft.world.level.levelgen.feature.StructureFeature.net.minecraft.world.level.levelgen.feature.StructureFeature$StructureStartFactory getStartFactory()(StructureFeature.java:268) at net.minecraft.world.level.levelgen.feature.ConfiguredStructureFeature.net.minecraft.world.level.levelgen.structure.StructureStart generate(net.minecraft.core.RegistryAccess,net.minecraft.world.level.chunk.ChunkGenerator,net.minecraft.world.level.biome.BiomeSource,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,long,net.minecraft.world.level.ChunkPos,net.minecraft.world.level.biome.Biome,int,net.minecraft.world.level.levelgen.feature.configurations.StructureFeatureConfiguration,net.minecraft.world.level.LevelHeightAccessor)(ConfiguredStructureFeature.java:36) at net.minecraft.world.level.chunk.ChunkGenerator.com.mojang.serialization.Codec codec()(ChunkGenerator.java:309) at net.minecraft.world.level.chunk.ChunkGenerator.net.minecraft.world.level.chunk.ChunkGenerator withSeed(long)(ChunkGenerator.java:309) at net.minecraft.world.level.chunk.ChunkGenerator.void buildSurfaceAndBedrock(net.minecraft.server.level.WorldGenRegion,net.minecraft.world.level.chunk.ChunkAccess)(ChunkGenerator.java:309) at net.minecraft.world.level.chunk.ChunkGenerator.void createStructure(net.minecraft.world.level.levelgen.feature.ConfiguredStructureFeature,net.minecraft.core.RegistryAccess,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.chunk.ChunkAccess,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,long,net.minecraft.world.level.biome.Biome)(ChunkGenerator.java:309) at net.minecraft.world.level.chunk.ChunkGenerator.java.util.concurrent.CompletableFuture fillFromNoise(java.util.concurrent.Executor,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.chunk.ChunkAccess)(ChunkGenerator.java:309) at net.minecraft.world.level.chunk.ChunkGenerator.int getBaseHeight(int,int,net.minecraft.world.level.levelgen.Heightmap$Types,net.minecraft.world.level.LevelHeightAccessor)(ChunkGenerator.java:309) at net.minecraft.world.level.chunk.ChunkGenerator.net.minecraft.world.level.NoiseColumn getBaseColumn(int,int,net.minecraft.world.level.LevelHeightAccessor)(ChunkGenerator.java:309) at net.minecraft.world.level.chunk.ChunkGenerator.com.mojang.serialization.Codec codec()(ChunkGenerator.java:292) at net.minecraft.world.level.chunk.ChunkGenerator.net.minecraft.world.level.chunk.ChunkGenerator withSeed(long)(ChunkGenerator.java:292) at net.minecraft.world.level.chunk.ChunkGenerator.void buildSurfaceAndBedrock(net.minecraft.server.level.WorldGenRegion,net.minecraft.world.level.chunk.ChunkAccess)(ChunkGenerator.java:292) at net.minecraft.world.level.chunk.ChunkGenerator.void createStructures(net.minecraft.core.RegistryAccess,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.chunk.ChunkAccess,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,long)(ChunkGenerator.java:292) at net.minecraft.world.level.chunk.ChunkGenerator.java.util.concurrent.CompletableFuture fillFromNoise(java.util.concurrent.Executor,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.chunk.ChunkAccess)(ChunkGenerator.java:292) at net.minecraft.world.level.chunk.ChunkGenerator.int getBaseHeight(int,int,net.minecraft.world.level.levelgen.Heightmap$Types,net.minecraft.world.level.LevelHeightAccessor)(ChunkGenerator.java:292) at net.minecraft.world.level.chunk.ChunkGenerator.net.minecraft.world.level.NoiseColumn getBaseColumn(int,int,net.minecraft.world.level.LevelHeightAccessor)(ChunkGenerator.java:292) at net.minecraft.world.level.chunk.ChunkStatus.java.util.concurrent.CompletableFuture lambda$static$2(net.minecraft.world.level.chunk.ChunkStatus,java.util.concurrent.Executor,net.minecraft.server.level.ServerLevel,net.minecraft.world.level.chunk.ChunkGenerator,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.server.level.ThreadedLevelLightEngine,java.util.function.Function,java.util.List,net.minecraft.world.level.chunk.ChunkAccess)(ChunkStatus.java:53) at net.minecraft.world.level.chunk.ChunkStatus.java.util.concurrent.CompletableFuture generate(java.util.concurrent.Executor,net.minecraft.server.level.ServerLevel,net.minecraft.world.level.chunk.ChunkGenerator,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.server.level.ThreadedLevelLightEngine,java.util.function.Function,java.util.List)(ChunkStatus.java:231) at net.minecraft.server.level.ChunkMap.java.util.concurrent.CompletableFuture lambda$scheduleChunkGeneration$19(net.minecraft.world.level.ChunkPos,net.minecraft.server.level.ChunkHolder,net.minecraft.world.level.chunk.ChunkStatus,java.util.concurrent.Executor,java.util.List)(ChunkMap.java:563) at com.mojang.datafixers.util.Either$Left.null map(null)(Either.java:38) at net.minecraft.server.level.ChunkMap.java.util.concurrent.CompletionStage lambda$scheduleChunkGeneration$21(net.minecraft.world.level.ChunkPos,net.minecraft.server.level.ChunkHolder,net.minecraft.world.level.chunk.ChunkStatus,java.util.concurrent.Executor,com.mojang.datafixers.util.Either)(ChunkMap.java:557) at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1146) at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478) at net.minecraft.server.level.ChunkTaskPriorityQueueSorter.void lambda$message$1(java.lang.Runnable,net.minecraft.util.thread.ProcessorHandle)(ChunkTaskPriorityQueueSorter.java:58) at net.minecraft.util.thread.ProcessorMailbox.boolean pollTask()(ProcessorMailbox.java:92) at net.minecraft.util.thread.ProcessorMailbox.int pollUntil(it.unimi.dsi.fastutil.ints.Int2BooleanFunction)(ProcessorMailbox.java:132) at net.minecraft.util.thread.ProcessorMailbox.void run()(ProcessorMailbox.java:100) at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1434) at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:295) at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1016) at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1665) at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1598) at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Server thread Stacktrace: at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1225) at net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager.net.minecraft.world.level.levelgen.structure.templatesystem.StructureTemplate get(net.minecraft.resources.ResourceLocation)(StructureManager.java:63) at net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager.net.minecraft.world.level.levelgen.structure.templatesystem.StructureTemplate getOrCreate(net.minecraft.resources.ResourceLocation)(StructureManager.java:53) at net.minecraft.world.level.levelgen.structure.TemplateStructurePiece.void (net.minecraft.world.level.levelgen.feature.StructurePieceType,int,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.resources.ResourceLocation,java.lang.String,net.minecraft.world.level.levelgen.structure.templatesystem.StructurePlaceSettings,net.minecraft.core.BlockPos)(TemplateStructurePiece.java:43) at net.minecraft.world.level.levelgen.structure.OceanRuinPieces$OceanRuinPiece.void (net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.resources.ResourceLocation,net.minecraft.core.BlockPos,net.minecraft.world.level.block.Rotation,float,net.minecraft.world.level.levelgen.structure.OceanRuinFeature$Type,boolean)(OceanRuinPieces.java:200) at net.minecraft.world.level.levelgen.structure.OceanRuinPieces.void addPiece(net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.core.BlockPos,net.minecraft.world.level.block.Rotation,net.minecraft.world.level.levelgen.structure.StructurePieceAccessor,java.util.Random,net.minecraft.world.level.levelgen.feature.configurations.OceanRuinConfiguration,boolean,float)(OceanRuinPieces.java:187) at net.minecraft.world.level.levelgen.structure.OceanRuinPieces.void addPieces(net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.core.BlockPos,net.minecraft.world.level.block.Rotation,net.minecraft.world.level.levelgen.structure.StructurePieceAccessor,java.util.Random,net.minecraft.world.level.levelgen.feature.configurations.OceanRuinConfiguration)(OceanRuinPieces.java:128) at net.minecraft.world.level.levelgen.structure.OceanRuinFeature$OceanRuinStart.void generatePieces(net.minecraft.core.RegistryAccess,net.minecraft.world.level.chunk.ChunkGenerator,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.world.level.ChunkPos,net.minecraft.world.level.biome.Biome,net.minecraft.world.level.levelgen.feature.configurations.OceanRuinConfiguration,net.minecraft.world.level.LevelHeightAccessor)(OceanRuinFeature.java:40) at net.minecraft.world.level.levelgen.structure.OceanRuinFeature$OceanRuinStart.void generatePieces(net.minecraft.core.RegistryAccess,net.minecraft.world.level.chunk.ChunkGenerator,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.world.level.ChunkPos,net.minecraft.world.level.biome.Biome,net.minecraft.world.level.levelgen.feature.configurations.FeatureConfiguration,net.minecraft.world.level.LevelHeightAccessor)(OceanRuinFeature.java:31) at net.minecraft.world.level.levelgen.feature.StructureFeature.net.minecraft.world.level.levelgen.structure.StructureStart generate(net.minecraft.core.RegistryAccess,net.minecraft.world.level.chunk.ChunkGenerator,net.minecraft.world.level.biome.BiomeSource,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,long,net.minecraft.world.level.ChunkPos,net.minecraft.world.level.biome.Biome,int,net.minecraft.world.level.levelgen.WorldgenRandom,net.minecraft.world.level.levelgen.feature.configurations.StructureFeatureConfiguration,net.minecraft.world.level.levelgen.feature.configurations.FeatureConfiguration,net.minecraft.world.level.LevelHeightAccessor)(StructureFeature.java:268) at net.minecraft.world.level.levelgen.feature.StructureFeature.net.minecraft.world.level.levelgen.feature.StructureFeature$StructureStartFactory getStartFactory()(StructureFeature.java:268) at net.minecraft.world.level.levelgen.feature.ConfiguredStructureFeature.net.minecraft.world.level.levelgen.structure.StructureStart generate(net.minecraft.core.RegistryAccess,net.minecraft.world.level.chunk.ChunkGenerator,net.minecraft.world.level.biome.BiomeSource,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,long,net.minecraft.world.level.ChunkPos,net.minecraft.world.level.biome.Biome,int,net.minecraft.world.level.levelgen.feature.configurations.StructureFeatureConfiguration,net.minecraft.world.level.LevelHeightAccessor)(ConfiguredStructureFeature.java:36) at net.minecraft.world.level.chunk.ChunkGenerator.com.mojang.serialization.Codec codec()(ChunkGenerator.java:309) at net.minecraft.world.level.chunk.ChunkGenerator.net.minecraft.world.level.chunk.ChunkGenerator withSeed(long)(ChunkGenerator.java:309) at net.minecraft.world.level.chunk.ChunkGenerator.void buildSurfaceAndBedrock(net.minecraft.server.level.WorldGenRegion,net.minecraft.world.level.chunk.ChunkAccess)(ChunkGenerator.java:309) at net.minecraft.world.level.chunk.ChunkGenerator.void createStructure(net.minecraft.world.level.levelgen.feature.ConfiguredStructureFeature,net.minecraft.core.RegistryAccess,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.chunk.ChunkAccess,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,long,net.minecraft.world.level.biome.Biome)(ChunkGenerator.java:309) at net.minecraft.world.level.chunk.ChunkGenerator.java.util.concurrent.CompletableFuture fillFromNoise(java.util.concurrent.Executor,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.chunk.ChunkAccess)(ChunkGenerator.java:309) at net.minecraft.world.level.chunk.ChunkGenerator.int getBaseHeight(int,int,net.minecraft.world.level.levelgen.Heightmap$Types,net.minecraft.world.level.LevelHeightAccessor)(ChunkGenerator.java:309) at net.minecraft.world.level.chunk.ChunkGenerator.net.minecraft.world.level.NoiseColumn getBaseColumn(int,int,net.minecraft.world.level.LevelHeightAccessor)(ChunkGenerator.java:309) at net.minecraft.world.level.chunk.ChunkGenerator.com.mojang.serialization.Codec codec()(ChunkGenerator.java:292) at net.minecraft.world.level.chunk.ChunkGenerator.net.minecraft.world.level.chunk.ChunkGenerator withSeed(long)(ChunkGenerator.java:292) at net.minecraft.world.level.chunk.ChunkGenerator.void buildSurfaceAndBedrock(net.minecraft.server.level.WorldGenRegion,net.minecraft.world.level.chunk.ChunkAccess)(ChunkGenerator.java:292) at net.minecraft.world.level.chunk.ChunkGenerator.void createStructures(net.minecraft.core.RegistryAccess,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.chunk.ChunkAccess,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,long)(ChunkGenerator.java:292) at net.minecraft.world.level.chunk.ChunkGenerator.java.util.concurrent.CompletableFuture fillFromNoise(java.util.concurrent.Executor,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.chunk.ChunkAccess)(ChunkGenerator.java:292) at net.minecraft.world.level.chunk.ChunkGenerator.int getBaseHeight(int,int,net.minecraft.world.level.levelgen.Heightmap$Types,net.minecraft.world.level.LevelHeightAccessor)(ChunkGenerator.java:292) at net.minecraft.world.level.chunk.ChunkGenerator.net.minecraft.world.level.NoiseColumn getBaseColumn(int,int,net.minecraft.world.level.LevelHeightAccessor)(ChunkGenerator.java:292) at net.minecraft.world.level.chunk.ChunkStatus.java.util.concurrent.CompletableFuture lambda$static$2(net.minecraft.world.level.chunk.ChunkStatus,java.util.concurrent.Executor,net.minecraft.server.level.ServerLevel,net.minecraft.world.level.chunk.ChunkGenerator,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.server.level.ThreadedLevelLightEngine,java.util.function.Function,java.util.List,net.minecraft.world.level.chunk.ChunkAccess)(ChunkStatus.java:53) at net.minecraft.world.level.chunk.ChunkStatus.java.util.concurrent.CompletableFuture generate(java.util.concurrent.Executor,net.minecraft.server.level.ServerLevel,net.minecraft.world.level.chunk.ChunkGenerator,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.server.level.ThreadedLevelLightEngine,java.util.function.Function,java.util.List)(ChunkStatus.java:231) -- Chunk to be generated -- Details: Location: 120,-195 Position hash: -837518622600 Generator: cpb@5acd793a Stacktrace: at net.minecraft.server.level.ChunkMap.java.util.concurrent.CompletableFuture lambda$scheduleChunkGeneration$19(net.minecraft.world.level.ChunkPos,net.minecraft.server.level.ChunkHolder,net.minecraft.world.level.chunk.ChunkStatus,java.util.concurrent.Executor,java.util.List)(ChunkMap.java:563) at com.mojang.datafixers.util.Either$Left.null map(null)(Either.java:38) at net.minecraft.server.level.ChunkMap.java.util.concurrent.CompletionStage lambda$scheduleChunkGeneration$21(net.minecraft.world.level.ChunkPos,net.minecraft.server.level.ChunkHolder,net.minecraft.world.level.chunk.ChunkStatus,java.util.concurrent.Executor,com.mojang.datafixers.util.Either)(ChunkMap.java:557) at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1146) at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478) at net.minecraft.server.level.ChunkTaskPriorityQueueSorter.void lambda$message$1(java.lang.Runnable,net.minecraft.util.thread.ProcessorHandle)(ChunkTaskPriorityQueueSorter.java:58) at net.minecraft.util.thread.ProcessorMailbox.boolean pollTask()(ProcessorMailbox.java:92) at net.minecraft.util.thread.ProcessorMailbox.int pollUntil(it.unimi.dsi.fastutil.ints.Int2BooleanFunction)(ProcessorMailbox.java:132) at net.minecraft.util.thread.ProcessorMailbox.void run()(ProcessorMailbox.java:100) -- Affected level -- Details: All players: 3 total; [abm['Nardwe'/141945, l='ServerLevel[centuralus_clean]', x=2196.50, y=63.00, z=-2973.50], abm['Bonesdog'/226111, l='ServerLevel[centuralus_clean]', x=2196.50, y=63.00, z=-2973.50], abm['treehouser'/277456, l='ServerLevel[centuralus_clean]', x=2197.56, y=63.00, z=-2972.26]] Chunk stats: 4103 Level dimension: minecraft:overworld Level spawn location: World: (-14,66,0), Section: (at 2,2,0 in -1,4,0; chunk contains blocks -16,0,0 to -1,255,15), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511) Level time: 48925829 game time, 4407709 day time Level name: centuralus_clean Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false Level weather: Rain time: 5903 (now: true), thunder time: 15355 (now: false) Known server brands: vanilla Level was modded: false Level storage version: 0x04ABD - Anvil Stacktrace: at net.minecraft.server.MinecraftServer.void tickChildren(java.util.function.BooleanSupplier)(MinecraftServer.java:879) at net.minecraft.server.dedicated.DedicatedServer.void tickChildren(java.util.function.BooleanSupplier)(DedicatedServer.java:312) at net.minecraft.server.MinecraftServer.void tickServer(java.util.function.BooleanSupplier)(MinecraftServer.java:816) at net.minecraft.server.MinecraftServer.boolean isSingleplayerOwner(com.mojang.authlib.GameProfile)(MinecraftServer.java:816) at net.minecraft.server.MinecraftServer.void runServer()(MinecraftServer.java:674) at net.minecraft.server.MinecraftServer.net.minecraft.server.MinecraftServer spin(java.util.function.Function)(MinecraftServer.java:261) at net.minecraft.server.MinecraftServer.boolean isSingleplayerOwner(com.mojang.authlib.GameProfile)(MinecraftServer.java:261) at net.minecraft.server.MinecraftServer.void lambda$spin$0(java.util.concurrent.atomic.AtomicReference)(MinecraftServer.java:261) at java.base/java.lang.Thread.run(Thread.java:831) -- System Details -- Details: Minecraft Version: 21w19a Minecraft Version ID: 21w19a Operating System: Linux (amd64) version 5.4.0-70-generic Java Version: 16.0.1, Private Build Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), Private Build Memory: 10916376800 bytes (10410 MB) / 21474836480 bytes (20480 MB) up to 21474836480 bytes (20480 MB) CPUs: 4 JVM Flags: 2 total; -Xms20G -Xmx20G Player Count: 3 / 70; [abm['Nardwe'/141945, l='ServerLevel[centuralus_clean]', x=2196.50, y=63.00, z=-2973.50], abm['Bonesdog'/226111, l='ServerLevel[centuralus_clean]', x=2196.50, y=63.00, z=-2973.50], abm['treehouser'/277456, l='ServerLevel[centuralus_clean]', x=2197.56, y=63.00, z=-2972.26]] Data Packs: vanilla, file/core_datapack (incompatible), file/sittable_stairs (incompatible), file/sittable_stairs_base (incompatible), file/timber (incompatible) Is Modded: Unknown (can't tell) Type: Dedicated Server (map_server.txt)