[00:19:59 ERROR]: Encountered an unexpected exception
java.lang.IllegalArgumentException: bound must be positive
        at java.util.Random.nextInt(Unknown Source) ~[?:1.8.0_171]
        at net.minecraft.server.v1_8_R3.BiomeJungle.a(SourceFile:72) ~[PaperSpigot1.8.8.1.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.ChunkProviderGenerate.getChunkAt(ChunkProviderGenerate.java:372) ~[PaperSpigot1.8.8.1.jar:git-PaperSpigot-"8b18730"]
        at org.bukkit.craftbukkit.v1_8_R3.generator.NormalChunkGenerator.getChunkAt(NormalChunkGenerator.java:51) ~[PaperSpigot1.8.8.1.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:284) ~[PaperSpigot1.8.8.1.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.Chunk.loadNearby(Chunk.java:1076) ~[PaperSpigot1.8.8.1.jar:git-PaperSpigot-"8b18730"]
        at org.bukkit.craftbukkit.v1_8_R3.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:77) ~[PaperSpigot1.8.8.1.jar:git-PaperSpigot-"8b18730"]
        at org.bukkit.craftbukkit.v1_8_R3.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:1) ~[PaperSpigot1.8.8.1.jar:git-PaperSpigot-"8b18730"]
        at org.bukkit.craftbukkit.v1_8_R3.util.AsynchronousExecutor$Task.finish(AsynchronousExecutor.java:188) ~[PaperSpigot1.8.8.1.jar:git-PaperSpigot-"8b18730"]
        at org.bukkit.craftbukkit.v1_8_R3.util.AsynchronousExecutor.finishActive(AsynchronousExecutor.java:347) ~[PaperSpigot1.8.8.1.jar:git-PaperSpigot-"8b18730"]
        at org.bukkit.craftbukkit.v1_8_R3.chunkio.ChunkIOExecutor.tick(ChunkIOExecutor.java:34) ~[PaperSpigot1.8.8.1.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:794) ~[PaperSpigot1.8.8.1.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378) ~[PaperSpigot1.8.8.1.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:713) ~[PaperSpigot1.8.8.1.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:616) [PaperSpigot1.8.8.1.jar:git-PaperSpigot-"8b18730"]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_171]