That's...a very strange error to encounter, but probably shouldn't affect anything with the story at least. Can you post a full traceback or screenshot of the error so we can take a better look at what's going on?
Oh, and btw... This started happening after I finished the second day on Aris. I started a new game to see if it was just a common error that happened, but then it started happening after and before these scenes. But so far I don't have any problem with continuing with the story.
