Is Night Life your latest EP? If you have new EPs then you will have to use the latest game files to save in.
I just opened the file to see what type of .txt files are in there. I see you are using the .nlo file to the game's lighting.txt, maybe the lighting.txt is not recognizing the file type.
I don't use the old way of adding to scripts anymore, try using
Scriptorium by Numenor to add to the script files. I just drag and drop into the appropriate areas.
EDIT: I don't know what type of file it is, but it is not text. The Scriptorium is not able to read that also. Windows doesn't recognize the file when I looked it up.