romeoprod on "[Theme: Virtue] Bug update 2.7.6. sidebar disappear"

I had a series of pages that are parameterized model "sidebar", and I chose a custom sidebar "sidebar1" contains a menu, which appeared only to those pages in question.
the second is the main sidebar sidebar that is used for the part blog so I can not use it.
i've put the 2.7.6 update virtue, the sidebar1 no longer exists. so the page doenst appears the menu custom on the right, and ni option i couldnt find "sidebar1", neither in widget.
how to restore the sidebar, on the understanding that no longer exists in the widget. only the main sidebar appears?
thank you