Error "You have been disconnected" after around 30 sec.

Hello everyone, staff, ppl, bad-boys, I'm relative new in this server but I've played Wotlk since 2013, I say that because after, I had another server, aura, then I forgot that server and years ago, I returned to Wotlk, I've downloaded the client normal (old) and translated it to spanish, anyway, it works (in spanish and english happen the same things), I can login, create new character, I can do anything but... around 30 sec. later after I login in my account (even if I don't select a character) it just expulse me saying "you have been disconnected" (I tried every woltk realm and every language possible)