Hey On3w,
the website login form says that the login/password you’ve provided in the email aren’t valid – could you please double-check?
Regarding your question about the localization: please try updating the language files in the “languages” folder inside the theme root folder (i.e. /wp-content/themes/Kanso/languages/ ) with these files – and make sure that your locale is set to portuguese in the wp-config.php file in your WordPress installation root folder. You can read more on changing the language of a WordPress website on their official pages here.
Sincerely,
Andrii / Satori Studio