I don't know how proper Italian translation is. You have to read it in English.
Anche se le regole sono tradotte dai LA, le uniche versioni ufficiali delle regole di BuzzerBeater e delle Condizioni di Servizio sono quelle scritte in Inglese.
From the manual:
No new registrations are allowed in the second phase of the election if there had been at least 10 votes cast up to that moment.
That says there can be new registrations in the second phase when there is less than 10 votes for all candidates together at the time. And I see something similar written in Italian version (according to google translator translation).