Caused by: org.bukkit.command.CommandException: Unhandled exception executing command 'pex' in plugin PermissionsEx v1.19.5
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:189)
        at org.bukkit.craftbukkit.v1_5_R3.CraftServer.dispatchCommand(CraftServer.java:523)
        at it.mri.mycommand.main.runconsolecommands(main.java:293)
        at it.mri.mycommand.ConsoleListener.onServerCommand(ConsoleListener.java:176)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
        ... 9 more
Caused by: java.lang.RuntimeException: java.lang.ArrayStoreException
        at ru.tehkode.permissions.commands.CommandsManager.execute(CommandsManager.java:121)
        at ru.tehkode.permissions.bukkit.PermissionsEx.onCommand(PermissionsEx.java:131)
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
        ... 18 more
Caused by: java.lang.ArrayStoreException
        at java.util.ArrayList.toArray(Unknown Source)
        at ru.tehkode.permissions.backends.file.FileUser.getGroupsNamesImpl(FileUser.java:65)
        at ru.tehkode.permissions.PermissionUser.getGroups(PermissionUser.java:228)
        at ru.tehkode.permissions.PermissionUser.getGroups(PermissionUser.java:219)
        at ru.tehkode.permissions.PermissionUser.getOption(PermissionUser.java:130)
        at ru.tehkode.permissions.PermissionEntity.getOptionBoolean(PermissionEntity.java:294)
        at ru.tehkode.permissions.PermissionEntity.initialize(PermissionEntity.java:53)
        at ru.tehkode.permissions.PermissionUser.initialize(PermissionUser.java:51)
        at ru.tehkode.permissions.ProxyPermissionUser.initialize(ProxyPermissionUser.java:42)
        at ru.tehkode.permissions.PermissionManager.getUser(PermissionManager.java:117)
        at ru.tehkode.permissions.backends.FileBackend.getRegisteredUsers(FileBackend.java:200)
        at ru.tehkode.permissions.PermissionBackend.getUsers(PermissionBackend.java:203)
        at ru.tehkode.permissions.PermissionManager.getUsers(PermissionManager.java:143)
        at ru.tehkode.permissions.bukkit.commands.PermissionsCommand.autoCompletePlayerName(PermissionsCommand.java:106)
        at ru.tehkode.permissions.bukkit.commands.PermissionsCommand.autoCompletePlayerName(PermissionsCommand.java:73)
        at ru.tehkode.permissions.bukkit.commands.UserCommands.userSetGroup(UserCommands.java:520)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at ru.tehkode.permissions.commands.CommandsManager$CommandBinding.call(CommandsManager.java:252)
        at ru.tehkode.permissions.commands.CommandsManager.execute(CommandsManager.java:114)
        ... 20 more
21:47:26 [INFO] Unknown command. Type "help" for help