CHARLOTTE, N.C. — Nine days after a 12-year-old camper at Trails Carolina was found dead, state regulators have ordered a North Carolina wilderness therapy program to stop taking new admissions — and to put measures in place immediately to keep children safe. In a letter dated Monday to Trails Carolina Executive Director Jeremy Whitworth, two top officials with the state Department of Health and Human Services said the program must require that at least one staff member to remain awake while children in the program are asleep. The letter also states that staff who were in the cabin where the b…