[17:57:32 INFO]: Akalyax issued server command: /md save
[17:57:32 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'md' in plugin MythicDungeons v1.0.0-SNAPSHOT
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[paper-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159) ~[paper-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.v1_18_R2.CraftServer.dispatchCommand(CraftServer.java:906) ~[paper-1.18.2.jar:git-Paper-379]
at net.minecraft.server.network.ServerGamePacketListenerImpl.handleCommand(ServerGamePacketListenerImpl.java:2307) ~[?:?]
at net.minecraft.server.network.ServerGamePacketListenerImpl.handleChat(ServerGamePacketListenerImpl.java:2118) ~[?:?]
at net.minecraft.server.network.ServerGamePacketListenerImpl.handleChat(ServerGamePacketListenerImpl.java:2099) ~[?:?]
at net.minecraft.network.protocol.game.ServerboundChatPacket.handle(ServerboundChatPacket.java:46) ~[?:?]
at net.minecraft.network.protocol.game.ServerboundChatPacket.a(ServerboundChatPacket.java:6) ~[?:?]
at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$1(PacketUtils.java:51) ~[?:?]
at net.minecraft.server.TickTask.run(TickTask.java:18) ~[paper-1.18.2.jar:git-Paper-379]
at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?]
at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?]
at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1400) ~[paper-1.18.2.jar:git-Paper-379]
at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:188) ~[paper-1.18.2.jar:git-Paper-379]
at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?]
at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1377) ~[paper-1.18.2.jar:git-Paper-379]
at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1370) ~[paper-1.18.2.jar:git-Paper-379]
at net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:114) ~[?:?]
at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1504) ~[paper-1.18.2.jar:git-Paper-379]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1226) ~[paper-1.18.2.jar:git-Paper-379]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:316) ~[paper-1.18.2.jar:git-Paper-379]
at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: java.lang.NullPointerException: Cannot invoke "net.playavalon.mythicdungeons.dungeons.Instance.saveWorld()" because "instance" is null
at net.playavalon.mythicdungeons.MythicDungeons.onCommand(MythicDungeons.java:1089) ~[MythicDungeons-1.0.0-SNAPSHOT.jar:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[paper-api-1.18.2-R0.1-SNAPSHOT.jar:?]
... 21 more