So I decided to draw my weapon on Brigitte after talking with Alt, which happens to have been equipped with a non-lethal mod (description attached, says it renders my weapon non-lethal, allowing me to damage enemies without killing them), and then switched to regular lethal weapon to really kill Placide. But on my way to the next mission, I got a message from him telling me to watch my back, and another one saying "User inactive. Error 7383" . Onto the question, should I be worried about this? Should I redo the mission to avoid encountering bug preventing me to advance in the story?