My account is administrator.
Should also say that the mod has two esp masters that are esmified by Wrye Bash.
I've always had problems witht the CS crashing when editing files with more than one master.
What you can do is use TES4EDIT to Copy as New Record the script into a new ESP. Then open that ESP in the CS, edit, compile and save. Open the files in TES4EDIT and add the old ESPs' masters to the new one, change the Form ID of the script back to the original and copy it back.
That's a method thah has worked for me, at least.