“Malok is near. Destroy the Taken Acoyltes to summon him..”
In front of the Shrine itself, you have one last task before you can confront Malok. There is a pack of Taken Acolytes which are channeling the power into the Shrine. You need to destroy them. This will draw out Malok and start the boss battle of this strike.
Keep the team together and coordinate at least a little. Sweep around the Shrine and take out the Acolytes as you do. This will keep the team together and help ensure you will have no trouble getting through this section.