[10:24:02 INFO]: NKCMK issued server command: /mrdungeons reload
[10:24:02 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'mrdungeons' in plugin MrDungeons v1.0
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[patched_1.12.2.jar:git-Paper-1620]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:152) ~[patched_1.12.2.jar:git-Paper-1620]
        at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchCommand(CraftServer.java:685) ~[patched_1.12.2.jar:git-Paper-1620]
        at net.minecraft.server.v1_12_R1.PlayerConnection.handleCommand(PlayerConnection.java:1492) ~[patched_1.12.2.jar:git-Paper-1620]
        at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1297) ~[patched_1.12.2.jar:git-Paper-1620]
        at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) ~[patched_1.12.2.jar:git-Paper-1620]
        at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:5) ~[patched_1.12.2.jar:git-Paper-1620]
        at net.minecraft.server.v1_12_R1.PlayerConnectionUtils.lambda$ensureMainThread$0(PlayerConnectionUtils.java:14) ~[patched_1.12.2.jar:git-Paper-1620]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) ~[?:?]
        at java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[?:?]
        at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) ~[patched_1.12.2.jar:git-Paper-1620]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:850) ~[patched_1.12.2.jar:git-Paper-1620]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:423) ~[patched_1.12.2.jar:git-Paper-1620]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:774) ~[patched_1.12.2.jar:git-Paper-1620]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:666) ~[patched_1.12.2.jar:git-Paper-1620]
        at java.lang.Thread.run(Thread.java:829) [?:?]
Caused by: java.sql.SQLException: database connection closed
        at org.sqlite.core.CoreConnection.checkOpen(CoreConnection.java:336) ~[patched_1.12.2.jar:git-Paper-1620]
        at org.sqlite.jdbc4.JDBC4Connection.createStatement(JDBC4Connection.java:38) ~[patched_1.12.2.jar:git-Paper-1620]
        at org.sqlite.jdbc3.JDBC3Connection.createStatement(JDBC3Connection.java:193) ~[patched_1.12.2.jar:git-Paper-1620]
        at me.sturm.mrdungeons.data.sql.SqlDataMaster.saveMobSpawnPositions(SqlDataMaster.kt:28) ~[?:?]
        at me.sturm.mrdungeons.mob.MobMaster.save(MobMaster.kt:62) ~[?:?]
        at me.sturm.mrdungeons.CommonManager.save(CommonManager.kt:59) ~[?:?]
        at me.sturm.mrdungeons.MrDungeonsCommand.onCommand(MrDungeonsCommand.kt:24) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[patched_1.12.2.jar:git-Paper-1620]
        ... 15 more