Review SEO (my most recent posts do not appear in Google)

My blog (www.brasilmasquefutbol.com) has always had an excellent positioning thanks to SEO but I do not know what has happened (maybe a plugin or a Wordpress update) I am noticing that my last posts do not appear in Google doing basic searches for keywords. For example, the last thing I wrote: '¿Por qué soy del Flamengo?' If I put those same words in the search engine that job does not appear. It's very strange. I need to identify and solve the problem.