[12:00:16] [Worker-Main-1/FATAL]: Failed to schedule load callback for chunk [12, -1]
java.util.concurrent.CompletionException: java.util.ConcurrentModificationException
	at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:314) ~[?:?]
	at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:319) ~[?:?]
	at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1766) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[?:?]
	at java.lang.Thread.run(Thread.java:831) ~[?:?]
Caused by: java.util.ConcurrentModificationException
	at java.util.HashMap.computeIfAbsent(HashMap.java:1225) ~[?:?]
	at org.bukkit.craftbukkit.v1_17_R1.block.data.CraftBlockData.newData(CraftBlockData.java:525) ~[patched_1.17.1.jar:git-Paper-334]
	at org.bukkit.craftbukkit.v1_17_R1.CraftServer.createBlockData(CraftServer.java:2417) ~[patched_1.17.1.jar:git-Paper-334]
	at org.bukkit.craftbukkit.v1_17_R1.CraftServer.createBlockData(CraftServer.java:2392) ~[patched_1.17.1.jar:git-Paper-334]
	at org.bukkit.Bukkit.createBlockData(Bukkit.java:1848) ~[patched_1.17.1.jar:git-Paper-334]
	at org.bukkit.Material.createBlockData(Material.java:4091) ~[patched_1.17.1.jar:git-Paper-334]
	at org.bukkit.craftbukkit.v1_17_R1.generator.CraftChunkData.setRegion(CraftChunkData.java:87) ~[patched_1.17.1.jar:git-Paper-334]
	at world.bentobox.caveblock.generators.ChunkGeneratorWorld.generateNoise(ChunkGeneratorWorld.java:105) ~[CaveBlock-1.15.0-SNAPSHOT-b406.jar:?]
	at org.bukkit.craftbukkit.v1_17_R1.generator.CustomChunkGenerator.lambda$fillFromNoise$0(CustomChunkGenerator.java:239) ~[patched_1.17.1.jar:git-Paper-334]
	at org.bukkit.craftbukkit.v1_17_R1.generator.CustomChunkGenerator.fillFromNoise(CustomChunkGenerator.java:244) ~[patched_1.17.1.jar:git-Paper-334]
	at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1764) ~[?:?]
	... 3 more
[12:00:16] [Server thread/INFO]: [STDOUT] [net.minecraft.CrashReport] Negative index in crash report handler (14/24)
[12:00:16] [Server thread/ERROR]: [BentoBox] Skipping CaveBlock due to an unhandled exception...
[12:00:16] [Server thread/ERROR]: [BentoBox] net.minecraft.ReportedException: Exception initializing level
	at net.minecraft.server.MinecraftServer.initWorld(MinecraftServer.java:760)
	at org.bukkit.craftbukkit.v1_17_R1.CraftServer.createWorld(CraftServer.java:1251)
	at org.bukkit.Bukkit.createWorld(Bukkit.java:661)
	at org.bukkit.WorldCreator.createWorld(WorldCreator.java:462)
	at CaveBlock-1.15.0-SNAPSHOT-b406.jar//world.bentobox.caveblock.CaveBlock.createWorlds(CaveBlock.java:141)
	at BentoBox.jar//world.bentobox.bentobox.managers.AddonsManager.enableAddon(AddonsManager.java:300)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179)
	at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596)
	at BentoBox.jar//world.bentobox.bentobox.managers.AddonsManager.enableAddons(AddonsManager.java:246)
	at BentoBox.jar//world.bentobox.bentobox.BentoBox.completeSetup(BentoBox.java:185)
	at BentoBox.jar//world.bentobox.bentobox.BentoBox.lambda$onEnable$0(BentoBox.java:170)
	at org.bukkit.craftbukkit.v1_17_R1.scheduler.CraftTask.run(CraftTask.java:101)
	at org.bukkit.craftbukkit.v1_17_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:483)
	at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:1221)
	at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:319)
	at java.base/java.lang.Thread.run(Thread.java:831)
Caused by: java.util.ConcurrentModificationException
	at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1225)
	at org.bukkit.craftbukkit.v1_17_R1.block.data.CraftBlockData.newData(CraftBlockData.java:525)
	at app//org.bukkit.craftbukkit.v1_17_R1.CraftServer.createBlockData(CraftServer.java:2417)
	at app//org.bukkit.craftbukkit.v1_17_R1.CraftServer.createBlockData(CraftServer.java:2392)
	at org.bukkit.Bukkit.createBlockData(Bukkit.java:1848)
	at org.bukkit.Material.createBlockData(Material.java:4091)
	at org.bukkit.craftbukkit.v1_17_R1.generator.CraftChunkData.setRegion(CraftChunkData.java:87)
	at CaveBlock-1.15.0-SNAPSHOT-b406.jar//world.bentobox.caveblock.generators.ChunkGeneratorWorld.generateNoise(ChunkGeneratorWorld.java:105)
	at app//org.bukkit.craftbukkit.v1_17_R1.generator.CustomChunkGenerator.lambda$fillFromNoise$0(CustomChunkGenerator.java:239)
	at app//org.bukkit.craftbukkit.v1_17_R1.generator.CustomChunkGenerator.fillFromNoise(CustomChunkGenerator.java:244)
	at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1764)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
	... 1 more