Hello,
Im not proficient in Portuguese so I will say it in English. If you please Zeroena, could you translate the following?
This error un particular it's happening because we moved our servers to an international location.
All you have to do is to download the following file:
Regnum Online Launcher
...and overwrite your current one (it's commonly located on Program Files\NGD Studios\RegnumOnline).
Regards