Questione giuridica chiave
Whether the civil appeal had to be declared inadmissible for failure to pay the advance of costs within the additional deadline.
Decisione estratta
Yes. Because the advance of costs was not paid within the second, non-extendable deadline, the appeal was inadmissible.
Motivazione estratta
Under Art. 62(3) BGG, the judge must set a suitable deadline for the advance and, if payment is not made, grant a further deadline; non-payment within that second deadline results in inadmissibility. That situation was met here.