I believe the problem is in translation pt-BR.
That is not the case. I downloaded the translation and it works. I've setup the same points and user names to make sure it is not a matter of word size and it works. I even added the on site notifications and it works. Here is the screenshot:
At some point, during the file manipulation, you must have broken the translation files, some core files, the themes, a plugin or maybe just a CSS file somewhere.