Hi and thanks you all,
First of all, I tried @dokumentor suggestion before. It’s just that, every now and then, for whatever reason, it switches again to Spanish on its own. The language setting is hidden in such an uncommon place that it’s easy for me to forget its location.
Furthermore, it’s very annyoying that, if you remove the “es” part of the URL, expecting going to the original versions, it keeps redirecting you to the Spanish over and over again.
And to reply @Cristina_Popescu:
My browser language is English, as you can see in the screenshot:
My Windows is in English, also:
And, finally, the only system setting that’s not in English is my locale/keyboard layour, which are in Catalan and Spanish, respectively, for obvious reasons (I need the time and days of the week, etc., in my local language, and I have a keyboard which is physically arranged in that layout).