[22:57:51] [Spigot Watchdog Thread/INFO]: Saving worlds
[22:57:51] [Spigot Watchdog Thread/INFO]: Saving chunks for level 'world'/minecraft:overworld
[22:57:51] [Server thread/FATAL]: Error executing task on Server
java.lang.NullPointerException: null
        at org.bukkit.craftbukkit.libs.it.unimi.dsi.fastutil.longs.LongOpenHashSet$SetIterator.nextLong(LongOpenHashSet.java:464) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.ChunkMapDistance$c.a(ChunkMapDistance.java:391) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.ChunkMapDistance.a(ChunkMapDistance.java:93) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.ChunkProviderServer.tickDistanceManager(ChunkProviderServer.java:202) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.ChunkProviderServer.access$3(ChunkProviderServer.java:201) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.ChunkProviderServer$a.executeNext(ChunkProviderServer.java:504) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.awaitTasks(SourceFile:123) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:91) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.World.getChunkAt(World.java:212) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.IWorldReader.getChunkAt(SourceFile:106) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.StructureGenerator.getNearestGeneratedFeature(StructureGenerator.java:106) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.ChunkGenerator.findNearestMapFeature(ChunkGenerator.java:73) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.WorldServer.a(WorldServer.java:1368) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.LootItemFunctionExplorationMap.a(SourceFile:68) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.LootItemFunctionConditional.apply(SourceFile:35) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.LootItemFunctionConditional.apply(SourceFile:24) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.LootItemFunction.a(SourceFile:16) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.LootItem.a(SourceFile:28) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.LootSelectorEntry$1.a(SourceFile:64) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.LootSelector.b(SourceFile:75) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.LootSelector.a(SourceFile:99) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.LootTable.populateLootDirect(SourceFile:75) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.LootTable.populateLoot(SourceFile:84) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.LootTable.populateLoot(SourceFile:89) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.LootTable.fillInventory(SourceFile:108) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.TileEntityLootable.d(SourceFile:75) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.TileEntityLootable.createMenu(SourceFile:147) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.EntityPlayer.openContainer(EntityPlayer.java:1040) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.BlockChest.interact(BlockChest.java:202) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.IBlockData.interact(SourceFile:285) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.PlayerInteractManager.a(PlayerInteractManager.java:463) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1267) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.PacketPlayInUseItem.a(PacketPlayInUseItem.java:27) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.PacketPlayInUseItem.a(PacketPlayInUseItem.java:1) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:13) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.TickTask.run(SourceFile:18) ~[spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeTask(SourceFile:135) [spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) [spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeNext(SourceFile:114) [spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.MinecraftServer.aW(MinecraftServer.java:898) [spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.MinecraftServer.executeNext(MinecraftServer.java:891) [spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeAll(SourceFile:99) [spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.MinecraftServer.sleepForTick(MinecraftServer.java:874) [spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:808) [spigot-1.14.3.jar:git-Spigot-5e4e7f3-2349feb]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]