Apparently they have restored the account. Still don't know what happened or received an explanation.
My Facebook account has been disabled for unknown reason and without previous warning. Supposedly I broke some community guidelines, but I have no idea what it could be.
I had to fill a form in order but I haven't seen any answer yet. Altough it is impossible to contact with a real person from their stuff, all you do is going in a loophole through their "help center"