06/28/2007 AT 05:50 PM EDT
Brad Renfro was found in violation of probation Thursday for not
enrolling in a long-term drug treatment program in connection with his
last year for attempted possession of heroin.
Los Angeles Superior Court Judge Dorothy Reyes and Deputy District Attorney Lydia Spencer warned Renfro that enrollment in an 18-month to three-year outpatient program is one of the conditions of his probation – and if he violates it two more times, they can sentence him to a live-in rehab program or to jail time.
Spencer says that Renfro was in treatment for over six months but then "struggled" and stopped attending.
"He's not in an active program right now, and that's a violation, and he's got to get back into a program," she PEOPLE.
Renfro, 24, pleaded guilty in February 2006 to one felony count of
attempted possession of heroin after being busted
in a police sting in L.A.'s skid row on Dec. 22, 2005.
Film director Joel Schumacher discovered Renfro at age 12 and cast him in the 1994 John Grisham movie The Client
(which also starred Susan Sarandon and Tommy Lee Jones). The following year, PEOPLE named the young screen hopeful one of its "Top 30 Under 30."
Renfro's other credits include Tom and Huck, Ghost World, Deuces Wild
and The Jacket.