Hello, João Muniz,
Please ensure that you have renamed the files as described in the documents and placed them into the correct folders for both the theme and Core plugin – https://xstore.helpscoutdocs.com/article/30-base-theme-translation
Sync translation – https://xstore.helpscoutdocs.com/article/103-translation-files-update
If you require any assistance, please provide us with your WordPress admin access.
Kind Regards,
8theme team