The “Blog” you currently have on the side bar menu is a page and not a blog, as the URL is https://anlupapeltapiz.com/pages/blog.
Your blog URL is https://anlupapeltapiz.com/blogs/papel-tapiz-vs-pintura/ , which also only shows 1 blog post now.
At your individual blog posts, you should use “Organization > Blog” on right side bar to assign the blog posts to the same blog. For example, if the blog post is assigned to “My Recipes”, then the URL should be something like amlupapeltapiz.com/blogs/my-recipes
