SimpleCommandMap.dispatch() has thrown a CommandException

We found this prefix in 2 webpages.
MapChildren (2)Typical messages (2)TraceDetailed Map
  1. java.lang.NullPointerException
    1.   at me.gnat008.perworldinventory.PerWorldInventory.onCommand()
    2.   at org.bukkit.command.PluginCommand.execute()
  2. org.bukkit.command.CommandException
    1.   at org.bukkit.command.PluginCommand.execute()
    2.   at org.bukkit.command.SimpleCommandMap.dispatch()
  1. GitHub iconNullPointerException

    First:9 months ago
    Last:5 months ago
    Author:CodingAir
  2. GitHub iconnull pointer on reload

    First:2 years ago
    Last:2 years ago
    Author:roha69
MessageNumber of crashes
Unhandled exception executing command 'pwi' in plugin PerWorldInventory v1.11.51
Unhandled exception executing command 'perworldinventory' in plugin PerWorldInventory v1.8.21
  1. java.lang.NullPointerException
    1.   at me.gnat008.perworldinventory.PerWorldInventory.onCommand()
    2.   at org.bukkit.command.PluginCommand.execute()
  2. org.bukkit.command.CommandException
    1.   at org.bukkit.command.PluginCommand.execute()
    2.   at org.bukkit.command.SimpleCommandMap.dispatch()