My friends are leaving me out of activities, what should I do

Hi, my “friends” are leaving me out during lunch and don’t include me in conversations or games. They recently started a toxic circle (rant circle and talk bad about people) of about 8 people and after they started it they left me out during lunch. I try to join them but they side eye me and start whispering. Last week they were fine but this week it has made me feel tired and just a little sad and want to move schools. What should I do? Their find to me in class but not during breaks.