I found that the related content at the end of my blog posts is not related, but shows the 3 newest blog posts. Is it wrong? Or I need to configure something to make it related to taxonomy?
Sorry, I forgot to add a link to a blog post example:
The post has the "Emprendimiento" tag, but at "Artículos relacionados" (related posts) the posts that are suggested don't have the Emprendimiento tag. They are the latest posts.
I can see that your version of Betheme is not up-to-date.
Please, update it to the newest version, and check if the problem persists.