19:13:28 [WARNING] Unexpected exception while parsing console command
org.bukkit.command.CommandException: Unhandled exception executing command 'manuadd' in plugin GroupManager v1.9 (2.9.1) (Phoenix)
 at org.bukkit.command.PluginCommand.execute(PluginCommand.java:42)
 at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:166)
 at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:473)
 at org.bukkit.craftbukkit.CraftServer.dispatchServerCommand(CraftServer.java:469)
 at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:599)
 at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:568)
 at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:452)
 at net.minecraft.server.ThreadServerApplication.run(SourceFile:490)
Caused by: java.lang.NullPointerException
 at org.anjocaido.groupmanager.GroupManager.onCommand(GroupManager.java:384)
 at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40)
 ... 7 more