Living with a Colonoscopy Bag: Need Advice

I had leak checks done before they tried a reversal and they said I had a infection and damage from radiation. I still get leakage from my bottom end even though I have a bag

Can they repair the leak? I've had a bowel resection to remove or reduce diverticulosis. We're also high risk on my dad's side for colon cancer and I just recently had a scare. I would think they would try to repair the leak. What do they say? I thought they try to make sure a bag is temporary.