Custom yml Empty

Hello there!
So I have a problem and by the moment i cant find the issue (It's possible ,that the error will be a stupid thing).
Its bassicaly , When i try to load a custom yml , put by default x values inside, but when the plugin is loaded, the custom yml is empty.

Code:

    public void onEnable() {
        instance = this;
        events = new Eventos(this,events);
        cmds = new Comandos(this,events);
        registrarEventos();
        registrarComandos();
        cargarConfiguracion();
        if(!(getDataFolder().exists())){
            getDataFolder().mkdir();
            fruitConfiguration.addDefault("Potatoe", 0);
            fruitConfiguration.addDefault("Apple", 0);
            fruitConfiguration.addDefault("Banana", 0);
            fruitConfiguration.addDefault("Kiwi", 0);
        }
        try {
            fruitConfiguration.save(fruitFile);
            fruitConfiguration.load(fruitFile);
        } catch (IOException | InvalidConfigurationException e) {
            e.printStackTrace();
        }
    }

 

You can use my custom YAML util. here
Usage:

Code:

ConfigFile file = new ConfigFile("config");
file.load();
//new ConfigFile("config") -> is the file inside the jar.