[11:43:37] [Thread-484/INFO]: [Iris]: Pregen: 135,989 of 262,144 (52%) 22/s ETA: 1.41 hours
[11:43:42] [Thread-484/INFO]: [Iris]: Pregen: 136,112 of 262,144 (52%) 24/s ETA: 1.41 hours
[11:43:47] [Thread-484/INFO]: [Iris]: Pregen: 136,192 of 262,144 (52%) 20/s ETA: 1.41 hours
[11:43:52] [Thread-484/INFO]: [Iris]: Pregen: 136,192 of 262,144 (52%) 8/s ETA: 1.41 hours
[11:43:57] [Thread-484/INFO]: [Iris]: Pregen: 136,192 of 262,144 (52%) 0/s ETA: 1.41 hours
[11:44:03] [Thread-484/INFO]: [Iris]: Pregen: 136,204 of 262,144 (52%) 1/s ETA: 1.41 hours
[11:44:09] [Thread-484/INFO]: [Iris]: Pregen: 136,312 of 262,144 (52%) 12/s ETA: 1.41 hours
[11:44:14] [Thread-484/INFO]: [Iris]: Pregen: 136,396 of 262,144 (52%) 17/s ETA: 1.41 hours
[11:44:19] [Thread-484/INFO]: [Iris]: Pregen: 136,504 of 262,144 (52%) 19/s ETA: 1.41 hours
[11:44:24] [Server thread/FATAL]: Error executing task on Chunk source main thread executor for minecraft:overworld
net.minecraft.ReportedException: Exception generating new chunk
	at net.minecraft.server.level.ChunkMap.lambda$scheduleChunkGeneration$34(ChunkMap.java:1241) ~[purpur-1.18.1.jar:git-Purpur-1521]
	at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:149) ~[?:?]
	at net.minecraft.server.level.ServerChunkCache$MainThreadExecutor.doRunTask(ServerChunkCache.java:1279) ~[?:?]
	at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[?:?]
	at net.minecraft.server.level.ServerChunkCache$MainThreadExecutor.pollTask(ServerChunkCache.java:1291) ~[?:?]
	at net.minecraft.server.level.ServerChunkCache.pollTask(ServerChunkCache.java:834) ~[?:?]
	at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1428) ~[purpur-1.18.1.jar:git-Purpur-1521]
	at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1411) ~[purpur-1.18.1.jar:git-Purpur-1521]
	at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:132) ~[?:?]
	at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1389) ~[purpur-1.18.1.jar:git-Purpur-1521]
	at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1295) ~[purpur-1.18.1.jar:git-Purpur-1521]
	at net.minecraft.server.MinecraftServer.lambda$spin$1(MinecraftServer.java:322) ~[purpur-1.18.1.jar:git-Purpur-1521]
	at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1597) ~[?:?]
	at java.util.HashMap$KeyIterator.next(HashMap.java:1620) ~[?:?]
	at org.bukkit.craftbukkit.v1_18_R1.generator.CustomChunkGenerator.a(CustomChunkGenerator.java:216) ~[purpur-1.18.1.jar:git-Purpur-1521]
	at net.minecraft.world.level.chunk.ChunkStatus.lambda$static$9(ChunkStatus.java:125) ~[purpur-1.18.1.jar:git-Purpur-1521]
	at net.minecraft.world.level.chunk.ChunkStatus$SimpleGenerationTask.doWork(ChunkStatus.java:342) ~[?:?]
	at net.minecraft.world.level.chunk.ChunkStatus.generate(ChunkStatus.java:273) ~[purpur-1.18.1.jar:git-Purpur-1521]
	at net.minecraft.server.level.ChunkTracker.lambda$scheduleChunkGeneration$35(ChunkTracker.java:1226) ~[?:?]
	at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[purpur-1.18.1.jar:?]
	at net.minecraft.server.level.ChunkTracker.lambda$scheduleChunkGeneration$37(ChunkTracker.java:1224) ~[?:?]
	at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1150) ~[?:?]
	at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:482) ~[?:?]
	at net.minecraft.server.level.ChunkTaskPriorityQueueSorter.lambda$message$1(ChunkTaskPriorityQueueSorter.java:58) ~[?:?]
	at net.minecraft.util.thread.ProcessorMailbox.pollTask(ProcessorMailbox.java:91) ~[?:?]
	at net.minecraft.util.thread.ProcessorMailbox.pollUntil(ProcessorMailbox.java:146) ~[?:?]
	at net.minecraft.util.thread.ProcessorMailbox.run(ProcessorMailbox.java:102) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) ~[?:?]
	... 1 more
[11:44:24] [Server thread/FATAL]: Failed to schedule load callback for chunk [160, 214]
java.util.concurrent.CompletionException: net.minecraft.ReportedException: Exception generating new chunk
	at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?]
	at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?]
	at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1159) ~[?:?]
	at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:482) ~[?:?]
	at net.minecraft.server.level.ChunkTaskPriorityQueueSorter.lambda$message$1(ChunkTaskPriorityQueueSorter.java:58) ~[?:?]
	at net.minecraft.util.thread.ProcessorMailbox.pollTask(ProcessorMailbox.java:91) ~[?:?]
	at net.minecraft.util.thread.ProcessorMailbox.pollUntil(ProcessorMailbox.java:146) ~[?:?]
	at net.minecraft.util.thread.ProcessorMailbox.run(ProcessorMailbox.java:102) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) ~[?:?]
	at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: net.minecraft.ReportedException: Exception generating new chunk
	at net.minecraft.server.level.ChunkMap.lambda$scheduleChunkGeneration$35(ChunkMap.java:1243) ~[purpur-1.18.1.jar:git-Purpur-1521]
	at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[purpur-1.18.1.jar:?]
	at net.minecraft.server.level.ChunkMap.lambda$scheduleChunkGeneration$37(ChunkMap.java:1224) ~[purpur-1.18.1.jar:git-Purpur-1521]
	at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1150) ~[?:?]
	... 8 more
Caused by: java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1597) ~[?:?]
	at java.util.HashMap$KeyIterator.next(HashMap.java:1620) ~[?:?]
	at org.bukkit.craftbukkit.v1_18_R1.generator.CustomChunkGenerator.a(CustomChunkGenerator.java:216) ~[purpur-1.18.1.jar:git-Purpur-1521]
	at net.minecraft.world.level.chunk.ChunkStatus.lambda$static$9(ChunkStatus.java:125) ~[purpur-1.18.1.jar:git-Purpur-1521]
	at net.minecraft.world.level.chunk.ChunkStatus$SimpleGenerationTask.doWork(ChunkStatus.java:342) ~[?:?]
	at net.minecraft.world.level.chunk.ChunkStatus.generate(ChunkStatus.java:273) ~[purpur-1.18.1.jar:git-Purpur-1521]
	at net.minecraft.server.level.ChunkTracker.lambda$scheduleChunkGeneration$35(ChunkTracker.java:1226) ~[?:?]
	at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[purpur-1.18.1.jar:?]
	at net.minecraft.server.level.ChunkTracker.lambda$scheduleChunkGeneration$37(ChunkTracker.java:1224) ~[?:?]
	at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1150) ~[?:?]
	... 8 more
[11:44:24] [Iris 13/WARN]: java.util.concurrent.ExecutionException: net.minecraft.ReportedException: Exception generating new chunk
[11:44:24] [Iris 13/WARN]: 	at java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:396)
[11:44:24] [Iris 13/WARN]: 	at java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2073)
[11:44:24] [Iris 13/WARN]: 	at Iris-1.9.8-1.18.X.jar//com.volmit.iris.core.pregenerator.methods.AsyncPregenMethod.completeChunk(AsyncPregenMethod.java:71)
[11:44:24] [Iris 13/WARN]: 	at Iris-1.9.8-1.18.X.jar//com.volmit.iris.core.pregenerator.methods.AsyncPregenMethod.lambda$generateChunk$2(AsyncPregenMethod.java:131)
[11:44:24] [Iris 13/WARN]: 	at java.base/java.util.concurrent.ForkJoinTask$AdaptedRunnableAction.exec(ForkJoinTask.java:1375)
[11:44:24] [Iris 13/WARN]: 	at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
[11:44:24] [Iris 13/WARN]: 	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
[11:44:24] [Iris 13/WARN]: 	at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
[11:44:24] [Iris 13/WARN]: 	at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
[11:44:24] [Iris 13/WARN]: 	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)
[11:44:24] [Iris 13/WARN]: Caused by: net.minecraft.ReportedException: Exception generating new chunk
[11:44:24] [Iris 13/WARN]: 	at net.minecraft.server.level.ChunkMap.lambda$scheduleChunkGeneration$35(ChunkMap.java:1243)
[11:44:24] [Iris 13/WARN]: 	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
[11:44:24] [Iris 13/WARN]: 	at net.minecraft.server.level.ChunkMap.lambda$scheduleChunkGeneration$37(ChunkMap.java:1224)
[11:44:24] [Iris 13/WARN]: 	at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1150)
[11:44:24] [Iris 13/WARN]: 	at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:482)
[11:44:24] [Iris 13/WARN]: 	at net.minecraft.server.level.ChunkTaskPriorityQueueSorter.lambda$message$1(ChunkTaskPriorityQueueSorter.java:58)
[11:44:24] [Iris 13/WARN]: 	at net.minecraft.util.thread.ProcessorMailbox.pollTask(ProcessorMailbox.java:91)
[11:44:24] [Iris 13/WARN]: 	at net.minecraft.util.thread.ProcessorMailbox.pollUntil(ProcessorMailbox.java:146)
[11:44:24] [Iris 13/WARN]: 	at net.minecraft.util.thread.ProcessorMailbox.run(ProcessorMailbox.java:102)
[11:44:24] [Iris 13/WARN]: 	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
[11:44:24] [Iris 13/WARN]: 	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
[11:44:24] [Iris 13/WARN]: 	at java.base/java.lang.Thread.run(Thread.java:833)
[11:44:24] [Iris 13/WARN]: Caused by: java.util.ConcurrentModificationException
[11:44:24] [Iris 13/WARN]: 	at java.base/java.util.HashMap$HashIterator.nextNode(HashMap.java:1597)
[11:44:24] [Iris 13/WARN]: 	at java.base/java.util.HashMap$KeyIterator.next(HashMap.java:1620)
[11:44:24] [Iris 13/WARN]: 	at org.bukkit.craftbukkit.v1_18_R1.generator.CustomChunkGenerator.a(CustomChunkGenerator.java:216)
[11:44:24] [Iris 13/WARN]: 	at net.minecraft.world.level.chunk.ChunkStatus.lambda$static$9(ChunkStatus.java:125)
[11:44:24] [Iris 13/WARN]: 	at net.minecraft.world.level.chunk.ChunkStatus$SimpleGenerationTask.doWork(ChunkStatus.java:342)
[11:44:24] [Iris 13/WARN]: 	at net.minecraft.world.level.chunk.ChunkStatus.generate(ChunkStatus.java:273)
[11:44:24] [Iris 13/WARN]: 	at net.minecraft.server.level.ChunkTracker.lambda$scheduleChunkGeneration$35(ChunkTracker.java:1226)
[11:44:24] [Iris 13/WARN]: 	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
[11:44:24] [Iris 13/WARN]: 	at net.minecraft.server.level.ChunkTracker.lambda$scheduleChunkGeneration$37(ChunkTracker.java:1224)
[11:44:24] [Iris 13/WARN]: 	... 9 more
[11:44:24] [Server thread/FATAL]: Error executing task on Server
java.util.concurrent.CompletionException: net.minecraft.ReportedException: Exception generating new chunk