[16:48:23 INFO]: <Robnoo02> ./plotcount <tab=error> <tab=list,add,remove> <tab=world1,world2> <no tab>
[16:48:33 ERROR]: Exception when Plis attempted to tab complete plotcount
org.bukkit.command.CommandException: Unhandled exception during tab completion for command '/plotcount ' in plugin PlotCount v1.12.2.3
        at org.bukkit.command.PluginCommand.tabComplete(PluginCommand.java:144) ~[patched_1.12.2.jar:git-Paper-1595]
        at org.bukkit.command.Command.tabComplete(Command.java:90) ~[patched_1.12.2.jar:git-Paper-1595]
        at org.bukkit.command.SimpleCommandMap.tabComplete(SimpleCommandMap.java:230) ~[patched_1.12.2.jar:git-Paper-1595]
        at org.bukkit.command.SimpleCommandMap.tabComplete(SimpleCommandMap.java:182) ~[patched_1.12.2.jar:git-Paper-1595]
        at org.bukkit.craftbukkit.v1_12_R1.CraftServer.tabCompleteCommand(CraftServer.java:1696) ~[patched_1.12.2.jar:git-Paper-1595]
        at org.bukkit.craftbukkit.v1_12_R1.CraftServer.tabComplete(CraftServer.java:1670) ~[patched_1.12.2.jar:git-Paper-1595]
        at net.minecraft.server.v1_12_R1.MinecraftServer.tabCompleteCommand(MinecraftServer.java:1232) ~[patched_1.12.2.jar:git-Paper-1595]
        at net.minecraft.server.v1_12_R1.PlayerConnection$9.evaluate(PlayerConnection.java:2310) ~[patched_1.12.2.jar:git-Paper-1595]
        at net.minecraft.server.v1_12_R1.PlayerConnection$9.evaluate(PlayerConnection.java:2307) ~[patched_1.12.2.jar:git-Paper-1595]
        at org.bukkit.craftbukkit.v1_12_R1.util.Waitable.run(Waitable.java:24) ~[patched_1.12.2.jar:git-Paper-1595]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:861) ~[patched_1.12.2.jar:git-Paper-1595]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:423) ~[patched_1.12.2.jar:git-Paper-1595]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:774) ~[patched_1.12.2.jar:git-Paper-1595]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:666) ~[patched_1.12.2.jar:git-Paper-1595]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_201]
Caused by: java.lang.NullPointerException
        at me.robnoo02.plotcount.Command.checkList(Command.java:138) ~[?:?]
        at me.robnoo02.plotcount.Command.onTabComplete(Command.java:128) ~[?:?]
        at org.bukkit.command.PluginCommand.tabComplete(PluginCommand.java:132) ~[patched_1.12.2.jar:git-Paper-1595]
        ... 14 more