How to modify the Headline for News Article

Hi,

I saw that in this page https://eleconomista.com.ar/2021-05-dolar-blue-hoy-31-de-mayo/ the headline is the <title></title> and it includes the post title and the sitename. I want to modify this. I want the headline is only the title of the post. Is it possible?

I will wait your answer,

Thanks

Sebastian

The page I need help with: [log in to see the link]