How can I change default language from Chinese to Pt-BR?

[Angeloasl20]

Hi, I am Brazilian and I'm having trouble with changing the language displayed in the HandyControl elements. I downloaded the "HandyControl.Lang.pt-BR by HandyOrg" nugget package and I added the following code:

protected override void OnStartup(StartupEventArgs e)
{
    base.OnStartup(e);

    CultureInfo.CurrentCulture = CultureInfo.InvariantCulture;
    CultureInfo.DefaultThreadCurrentCulture = CultureInfo.InvariantCulture;
    ConfigHelper.Instance.SetLang("pt-br");
    Lang.Culture = new CultureInfo("pt-br");
}

On my App.xaml.cs

I have both "HandyControl by HandyOrg" and "HandyControl.Lang.pt-BR by HandyOrg" on version 3.5.1
What should I do?