Moloch
I did not quite follow the plot of this one.
I am going to have to look at a summary. There was this technology on this planet where all the information of an object could be stored on a keycard. The card could be plugged into a machine where it would rebuild a copy of the object. It did not work on living creatures. The creature would die when it was built.
The main computer on the planet was actually this creature called Moloch. He was the predicted evolution of these aliens. He tries to beam aboard the Liberator and take it over. He forgets that the computer he was attached to was keeping him alive and dies.