Overriding Config(Not Solved)

So basically when i type this code

Code (Text):

public void addString(String string) {
        List<String> list = config.getStringList("Channels.links");
        list.add(string);
        config.set("Channels.links", list);
        try {
            configp.save(config, configfile);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

And use it in this command class:

https://hastebin.com/emijebukut.scala

When I run it in game it overrides the config and makes the StringList blank. Anyone know how to fix?

Thanks in advanced to anyone who helps

 

https://hastebin.com/nuhizeketu.cpp There is the main class, and here is the config https://hastebin.com/zacebezupi.coffeescript