The Education program extension has been removed from production some time ago (T125618). In some wikis were the namespaces not removed, as there were still pages there, e.g. as archives. In eswiki there are no pages left in these namespaces:
https://es.wikipedia.org/wiki/Special:allpages?from=&to=&namespace=446
https://es.wikipedia.org/wiki/special:allpages?from=&to=&namespace=447
thus they should be removed.