Wrong code?

It's my code:

Code:

            final Player target = Bukkit.getServer().getPlayer(args[0]);
            if (settings.getData().getConfigurationSection("Bany." + args[0]) == null){
                System.out.println(args[0]);
                sender.sendMessage("§cTen gracz nie jest zbanowany");
                return true;
            }
            settings.getData().set("Bany." + target.getName(), null);
            target.setBanned(false);
            settings.saveData();
            sender.sendMessage("§aOdbanowano " + args[0]);

When i try to unban not banned player is says "Player is not banned".
When i try to unban banned player there's an warn in console and command does not work:

Code:

[21:26:55] [Server thread/WARN]: Unexpected exception while parsing console command "unban Urag"
org.bukkit.command.CommandException: Unhandled exception executing command 'unban' in plugin Ban v1.0
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:181) ~[craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCommand(CraftServer.java:767) ~[craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchServerCommand(CraftServer.java:753) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at net.minecraft.server.v1_7_R4.DedicatedServer.aB(DedicatedServer.java:326) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:290) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
Caused by: java.lang.NullPointerException
    at me.urag.ban.Main.onCommand(Main.java:86) ~[?:?]
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    ... 8 more

 

Remove the . you don't need that.

Also are you running it through console because that usually happens to me when i'm casting player to a sender.

 

@Eos
Which "."?

 

This might help you I guess.

 

@Eos
@amatokus
Is there an error because i want to unban offline player?
If i remove "target.setBanned(false);" everything works, but not like i want to.

 

Code:

            OfflinePlayer off = Bukkit.getOfflinePlayer(args[1]);

 

Do a check to see if target != null, always do that check when messing with target players.