[09:22:55] [Server thread/ERROR] [minecraft/MinecraftServer]: Encountered an unexpected exception
net.minecraft.util.ReportedException: Exception generating new chunk
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:762) ~[MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:397) ~[nz.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668) ~[MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_112]
Caused by: java.lang.IllegalArgumentException: Duplicate Id
at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[minecraft_server.1.12.2.jar:?]
at org.spongepowered.common.registry.type.world.gen.PopulatorTypeRegistryModule.registerAdditionalCatalog(PopulatorTypeRegistryModule.java:205) ~[PopulatorTypeRegistryModule.class:1.12.2-14.23.5.2768-7.1.6-RC3583]
at org.spongepowered.common.registry.type.world.gen.PopulatorTypeRegistryModule.getOrCreateForType(PopulatorTypeRegistryModule.java:236) ~[PopulatorTypeRegistryModule.class:1.12.2-14.23.5.2768-7.1.6-RC3583]
at org.spongepowered.common.world.gen.populators.WrappedBiomeDecorator.<init>(WrappedBiomeDecorator.java:47) ~[WrappedBiomeDecorator.class:1.12.2-14.23.5.2768-7.1.6-RC3583]
at net.minecraft.world.biome.Biome.proxy+createDefaultGenerationSettings(Biome.java:705) ~[anh.class:?]
at net.minecraft.world.biome.Biome.createDefaultGenerationSettings(Biome.java:1156) ~[anh.class:?]
at org.spongepowered.common.world.gen.SpongeChunkGenerator.getBiomeSettings(SpongeChunkGenerator.java:222) ~[SpongeChunkGenerator.class:1.12.2-14.23.5.2768-7.1.6-RC3583]
at org.spongepowered.common.world.gen.SpongeChunkGenerator.replaceBiomeBlocks(SpongeChunkGenerator.java:547) ~[SpongeChunkGenerator.class:1.12.2-14.23.5.2768-7.1.6-RC3583]
at org.spongepowered.mod.world.gen.SpongeChunkGeneratorForge.replaceBiomeBlocks(SpongeChunkGeneratorForge.java:153) ~[SpongeChunkGeneratorForge.class:1.12.2-14.23.5.2768-7.1.6-RC3583]
at org.spongepowered.common.world.gen.SpongeChunkGenerator.func_185932_a(SpongeChunkGenerator.java:252) ~[SpongeChunkGenerator.class:1.12.2-14.23.5.2768-7.1.6-RC3583]
at net.minecraft.world.gen.ChunkProviderServer.func_186025_d(ChunkProviderServer.java:143) ~[on.class:?]
at net.minecraft.server.management.PlayerChunkMapEntry.redirect$onProvidePlayerChunk$bck000(PlayerChunkMapEntry.java:1079) ~[ot.class:?]
at net.minecraft.server.management.PlayerChunkMapEntry.func_187268_a(PlayerChunkMapEntry.java:126) ~[ot.class:?]
at net.minecraft.server.management.PlayerChunkMap.func_72693_b(SourceFile:147) ~[ou.class:?]
at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:227) ~[oo.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:756) ~[MinecraftServer.class:?]
... 4 more
[09:22:55] [Server thread/ERROR] [minecraft/MinecraftServer]: This crash report has been saved to: /hlserver/27460/./crash-reports/crash-2019-06-01_09.22.55-server.txt
[09:22:55] [Server thread/INFO] [minecraft/MinecraftServer]: Stopping server
[09:22:55] [Server thread/INFO] [minecraft/MinecraftServer]: Saving players
[09:22:55] [Server thread/INFO] [minecraft/MinecraftServer]: Saving worlds