[02:28:52 INFO]: Frerduro issued server command: /iris std o overworld
[02:28:52 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'iris' in plugin Iris v1.0.11
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[patched_1.16.3.jar:git-Paper-231]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159) ~[patched_1.16.3.jar:git-Paper-231]
        at org.bukkit.craftbukkit.v1_16_R2.CraftServer.dispatchCommand(CraftServer.java:802) ~[patched_1.16.3.jar:git-Paper-231]
        at net.minecraft.server.v1_16_R2.PlayerConnection.handleCommand(PlayerConnection.java:1918) ~[patched_1.16.3.jar:git-Paper-231]
        at net.minecraft.server.v1_16_R2.PlayerConnection.a(PlayerConnection.java:1729) ~[patched_1.16.3.jar:git-Paper-231]
        at net.minecraft.server.v1_16_R2.PacketPlayInChat.a(PacketPlayInChat.java:47) ~[patched_1.16.3.jar:git-Paper-231]
        at net.minecraft.server.v1_16_R2.PacketPlayInChat.a(PacketPlayInChat.java:5) ~[patched_1.16.3.jar:git-Paper-231]
        at net.minecraft.server.v1_16_R2.PlayerConnectionUtils.lambda$ensureMainThread$1(PlayerConnectionUtils.java:23) ~[patched_1.16.3.jar:git-Paper-231]
        at net.minecraft.server.v1_16_R2.TickTask.run(SourceFile:18) ~[patched_1.16.3.jar:git-Paper-231]
        at net.minecraft.server.v1_16_R2.IAsyncTaskHandler.executeTask(IAsyncTaskHandler.java:136) ~[patched_1.16.3.jar:git-Paper-231]
        at net.minecraft.server.v1_16_R2.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) ~[patched_1.16.3.jar:git-Paper-231]
        at net.minecraft.server.v1_16_R2.IAsyncTaskHandler.executeNext(IAsyncTaskHandler.java:109) ~[patched_1.16.3.jar:git-Paper-231]
        at net.minecraft.server.v1_16_R2.MinecraftServer.ba(MinecraftServer.java:1135) ~[patched_1.16.3.jar:git-Paper-231]
        at net.minecraft.server.v1_16_R2.MinecraftServer.executeNext(MinecraftServer.java:1128) ~[patched_1.16.3.jar:git-Paper-231]
        at net.minecraft.server.v1_16_R2.IAsyncTaskHandler.awaitTasks(IAsyncTaskHandler.java:119) ~[patched_1.16.3.jar:git-Paper-231]
        at net.minecraft.server.v1_16_R2.MinecraftServer.sleepForTick(MinecraftServer.java:1089) ~[patched_1.16.3.jar:git-Paper-231]
        at net.minecraft.server.v1_16_R2.MinecraftServer.w(MinecraftServer.java:1003) ~[patched_1.16.3.jar:git-Paper-231]
        at net.minecraft.server.v1_16_R2.MinecraftServer.lambda$a$0(MinecraftServer.java:177) ~[patched_1.16.3.jar:git-Paper-231]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_262]
Caused by: java.lang.NullPointerException
        at com.volmit.iris.gen.ParallelTerrainProvider.onClose(ParallelTerrainProvider.java:111) ~[?:?]
        at com.volmit.iris.gen.ParallaxTerrainProvider.onClose(ParallaxTerrainProvider.java:79) ~[?:?]
        at com.volmit.iris.gen.IrisTerrainProvider.onClose(IrisTerrainProvider.java:167) ~[?:?]
        at com.volmit.iris.gen.ContextualTerrainProvider.close(ContextualTerrainProvider.java:358) ~[?:?]
        at com.volmit.iris.manager.IrisProject.close(IrisProject.java:227) ~[?:?]
        at com.volmit.iris.manager.ProjectManager.close(ProjectManager.java:321) ~[?:?]
        at com.volmit.iris.manager.ProjectManager.open(ProjectManager.java:299) ~[?:?]
        at com.volmit.iris.manager.ProjectManager.open(ProjectManager.java:290) ~[?:?]
        at com.volmit.iris.command.CommandIrisStudioOpen.handle(CommandIrisStudioOpen.java:32) ~[?:?]
        at com.volmit.iris.util.VirtualCommand.hit(VirtualCommand.java:118) ~[?:?]
        at com.volmit.iris.util.VirtualCommand.hit(VirtualCommand.java:105) ~[?:?]
        at com.volmit.iris.util.VirtualCommand.hit(VirtualCommand.java:105) ~[?:?]
        at com.volmit.iris.util.MortarPlugin.onCommand(MortarPlugin.java:493) ~[?:?]
        at com.volmit.iris.Iris.onCommand(Iris.java:241) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[patched_1.16.3.jar:git-Paper-231]
        ... 18 more