Scott Disick has gone back to rehab for his ongoing substance abuse issues. Last week, the “Keeping Up With The Kardashians” star entered a treatment facility in Colorado ET has confirmed. “Scott Disick has entered rehab for substance abuse issues,” a source said. “Scott has struggled with these issues for a while and although he was previously doing well, it was time for him to get help again.” “Kourtney and Sophia were a big proponent in having Scott enter rehab in Colorado,” they added. “At the end of the day, Scott needs to be clean to be around his children and family and that’s everyone’s main focus right now … is Scott’s sobriety and the kids having a healthy father.” RELATED: Kylie Jenner And Mom Kris Reunite In Quarantine,