Demo shows up partially in spanish and some english

We're trying to see if your software would work for our school or not, and when the person making the decision clicks on it, it's in Spanish (but only partially). When I was looking last week it was in English, so I'm a little mystified. Hoping to explain to her how your site could work for us but I can't show her. Please update or share a link to an English version?

Thank you!