Welcome to the forum!.It should put out some new leaves, I lost some baby leaves around the same time,it only caught a couple of varieties which tried to leaf out earlier than the others,mine are pushing out new leaves now.You only need to prune if the wood itself dies back,I only lost one tip this winter on quite young growth(still mostly green) on my Jerusalem(Said to be a Synonym for Longue d'Aout).We had a couple of freezes down to about -3 or 4 here a while back,the bud shrivelled and then the tip went black and dried out so it's pretty obvious when it happens.I just pruned back to above the next bud and now it's budding out in about 3 different places so it's all good.I have never heard of Fico Bianco Hardy, but Fico Bianco is a white Italian fig(literally means White Fig)