Complication after Gall Bladder Removal.

Hi, A friend of mine who is a female of 28 years suffered from pain in the upper right side of abdomen area in the left side. On tests it was detected she had stones in her Gall Bladder which was adviced to be removed. She Underwent Laparoscopic cholecystectomy on 12-02-2022. However a week after the surgery her chest pains were back. She currently has jaundice and chest pain. And was adviced MRCP to detect obstruction in the bile duct. Was diagnosed with choledocholithiasis on 27-02-2022. Have been advised an ERCP procedure to resolve the issue of obstruction. However, would like some detail on if any stents would be use for the procedure, what are the chances of it or why it should or shouldn't be used. Attaching her reports for your reference.