The game shuts down without an error message while playing, and two files are missing. After updating or downloading them, the issue repeats. How can I solve this?

Make sure that you have full administrator access in your Windows user account when playing and that CSN is running from a Steam installation created by your own Windows user account. There may be issues with CSN not being able to update or create necessary files when launching. If you still encounter issues after attempting to troubleshoot, please submit a ticket.