I recall in the past some people have said that downloading "through the app" didn't work for them, but it sounds like you've tried doing it outside of the app too, and it didn't work.
yes, it is not about the web or the app, it is just not downloading, and as I understand spanish speakers are having the same problem as I see in forums
but it can be a problem form itch, as I can see, I cannot even download the app anymore, I tried installing it again and even from different browsers nothing is workin. other games thought are downloading