According to this post in the official ME3 Technical Support Forum:
social.bioware.com/forum/1/topic/344/index/9670040
The game has just been updated, Although no release notes have been provided.
I am curious to know if this update has had any effect on the functionality of the trainer. I would test myself, But I am at work at the moment.
I think it was for people who were on Windows 7 and the game not starting up correctly or at all.