A sharply divided state appeals panel found a juvenile probationary order to stay away from gang members was unconstitutional.At issue in the case was an order from Cook County Circuit Judge Kristal Royce Rivers, who told 16-year-old respondent K.M. to have “no contact with gangs, guns or drugs” in an order issued last week. Although K.M. did not object to his probation sentence at trial, he argued on appeal that his no gang-contact order and an order not to be tagged in any social media involving gangs, guns …