Cloze/Omissão de Palavras is a special note type in Anki. You can’t just clone or rename a different note type and name it “Cloze” or “Omissão de Palavras”; it won’t work like a Cloze/Omissão de Palavras note. It seems that you may have done this. It seems that your note type named “Cloze” is not an actual Cloze special note type.
If that is the case, please select the Omissão de Palavras note type when creating a new card.
If the note type named “Omissão de Palavras” does not exist (for example, if you previously deleted it), use Tools > Manage Note Types > Add > Add: Omissão de Palavras to re-add it.
(If you previously incorrectly created/renamed a note type to “Omissão de Palavras”, you might need to first rename it to something else before re-adding the real Omissão de Palavras note type.)
Please see these posts from other people who encountered similar issues: