Solved Problem with getConfig and SendMessage

When I use /rename I see error:

But the command working but the messages no display.

Main.java

Code:java

@Override
public void onEnable() {
   getCommand("rename").setExecutor(new Comando(this));
}

Comando.java

Code:java

public class Comando implements CommandExecutor {
main plugin;
 
public Comando(main instance) {
plugin = instance;
}
 
@Override
public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args){
//Rename an item without enchantment
if(commandLabel.equalsIgnoreCase("rename")) {
//Rename
   if (args.length > 3) {
     Player p = (Player)sender;
 String arg1 = args[0];
 String arg4 = args[2].toUpperCase();
     PlayerInventory inventory = p.getInventory();
     ItemStack itemstack = new ItemStack(Material.matchMaterial(arg1), Integer.parseInt(args[1])); 
     ItemMeta test = (ItemMeta) itemstack.getItemMeta();
     StringBuilder string = new StringBuilder();
     for (int s = 3; s < args.length; s++) {
     if (s > 3) string.append(" ");
     string.append(args[s]);
     }
     String newnameitem = string.toString();
     test.setDisplayName(ChatColor.valueOf(arg4) + newnameitem);
     itemstack.setItemMeta(test);
     inventory.addItem(itemstack);
     String itemrenamed = Material.matchMaterial(arg1).name();
    p.sendMessage(ChatColor.GREEN + plugin.getConfig().getString("msg1") + " " + itemrenamed.toLowerCase() + ChatColor.WHITE + " " + plugin.getConfig().getString("msg2") + " " + ChatColor.valueOf(arg1) + newnameitem);
    p.sendMessage(ChatColor.GREEN + plugin.getConfig().getString("msg3"));
return true;
   } else {
   Player p = (Player)sender;
   p.sendMessage(plugin.getCommand("rename").getUsage());
   }
 }
 
return true;
}
 
}[/s]

 

xMinecraft
It's saying something isn't a chat color so you're gonna have to make sure it is, remember their all caps, and instead of spaced there _

 

What?

 

xMinecraft

Code:

Caused by: java.lang.IllegalArgumentException: No enum constant org.bukkit.ChatColor.261
at java.lang.Enum.valueOf(Unknown Source)
at org.bukkit.ChatColor.valueOf(ChatColor.java:13)
at com.gmail.lopezitospriter.ItemName.main.onCommand(main.java:95)

Was the error given.
Thats saying that line 95 of main in the onCommand has a invalid chat color