I was having a friendly discussion with the Aldor while you were gone. Manaforges sure look like modified naaru technology from Tempest Keep. Apparently, most naaru constructs have certain safeguards that allow them to be permanently disabled in case of emergency.
The procedure is usually initiated at a control console via an access crystal. Lo and behold, according to the roster you secured, such a crystal is in the possession of a fellow called Overseer Theredis. Obtain it and see what you can do.