If you see this message you are banned with HWID which they ban your MAC address so to bypass it just download and install
TMAC v6 = Technitium MAC Address Changer v6 - (Search in Google).
Once you have it installed just click the Random MAC Address and your connection will reset automatically.
When its done you can logback in the game with unbanned MAC.
This has been tested by me and @Jabberwo0ck because these fkers banned our HWID o.o so its MPGH 1 / Aeria 0