Calendas are not synchronizing with google calendar . Any solutions?

vor 6 Jahren

Hi I've been working with my google calendar for more than two years now and suddenly, they both (Laptop and Cellphone google calendars) stopped working properly , this is so frustrating, I have double bookings constantly and many events simple don't get registered , what can I do? Please Help! I've been having this issue for a month now and I tried many solutions that they give you on line but still ,nothing has helped.