Ice forming on refrigerant lines or the indoor coil usually means restricted airflow or low refrigerant

https://centralfloridaairconservice839.theburnward.com/winter-haven-ac-breakdown-how-to-protect-your-home-and-family

Ice forming on refrigerant lines or the indoor coil usually means restricted airflow or low refrigerant. Switch the AC off and let it thaw before requesting service.