"Somebody got in here and disconnected it from the primary antimatter feed."
Dilemma - Space dilemma
Unless you have Astrometrics, Engineer, and Navigation or Leadership, Officer, and Cunning > 28 , all your personnel are stopped and this dilemma is placed on your ship.
Card logging info: Logged by openCards team at Jan 1st, 2008.
"Sabotaged Reactor" is a backward compatible card form the Second Edition expansion Captain's Log - ST1E compatible (Copyright 2006 by Decipher).
See collectors infos for this card in the Second Edition section under the UCT-ID: ST2E 10 C 15.
Also see here for all trade lists with any card fom "Captain's Log - ST1E compatible".