What should I do with a toxic person in a friend group?

I was in a friendgroup that i loved so much. We came so close with certain people. We chatted like 24/7. But a girl in that friendgroup did something and blamed it to me and removed me from the friend group. she's kinda crazy and acts like she can kill us that why everybody is scared of her. She told the kids to block me and they all did. I wanna talk to them tommorow and tell them that we shouldn't be scared of her and remove her from the friend group as soon as possible. Everybody hates her even teachers and her parents. She tries to act cool but bro she's not. Were going on a 3day trip and my best friend isn't coming but rhe friend group is. Were going on April. How can i get again into the friend group and tell everybody to remove her from the friendgroup because she always causes problems. Help guys 0
What should I do with a toxic person in a friend group?
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