How long can stay out of italy as holding carta di soggiorno

I am holding carta di singiorno lungs peridio actually I came to my india in 2020 on 7 th of Jan but I get stuck here due to carona and can't go back italy with my kid of 6 year now 16 months are going to be passed here and still the same crisis going on so I wanna query that I can go back to italy or there will be issued related to overtime out of italy

You need to contact the Embassy