well, i can't speak specificially for this error, because it pops up occasionally. As you get more and more comfortable with how the game actually works, you realize there is a lot of potential for users to create errors. For example, I had errors and crashes one day because I had set an infinite loop of orders-- move to earth/refuel from earth... for infinity. Before I knew the basic way to play the game, I broke it badly and had to start over. When it gets stable, check all of your task groups for strange or impossible orders, like unloading goods that don't exist from a colony that doesn't exist. Sometimes, these problems happen within NPR systems, and then there is not much recourse.
I now play with NPRs off at start, and deal with them as I encounter them. It seems to cut down on the disasters.
Search the forum for the SPECIFIC error, and post the entire message and someone might have a better idea whats going on. But things break occasionally. If it can be isolated to an NPR, maybe SM-Deleting the NPR would help.
