[Yoosung is loyal to a fault, so he's inclined to take Vivi's side on this first of all.]

What! How could he do that! You always did your best for us...

[...Even so, this sounds pretty bad. Especially how she said she messed up. With what he heard about what happened to Henry and Viral, that sets off some loud alarm bells.]

I-I don't know anything about robots. Is shutting Connor off dangerous?

[No, maybe he should just get to the point.]

What did you mess up?