Friends ignoring me

I texted my friend about something she lied to me about. It was nothing rude and i was very nice. She's texting in group chats we're in but she doesn't respond to me i guess in spite. I really hate conflict so i texted her saying to forget what I said but my mum said that I shouldn't feel bad and that she should have answered me. We do a lot of stuff together and my other friends want to hang out tomorrow. What should I do? Should i go and act like everything's normal or ignore her? I cant exactly text her again i'll look very desperate and silly reaching out to her over and over with no response.