The Error could be the account your running it under or the way you defined the Schedule. It doesn’t have to be a script step.
When asking for script help please show/post the script. Attaching a PDF of the script would be a very good idea.
Without seeing the script I doubt anyone will be able to help very much. All you’ll get a lot of guesses.
Sorry If I wasn't clear, I'm really asking about the FMS issue where it says there was a script error, but there is no corresponding error message in the FMS log.
I don't think this is solved, but since posting this, I stopped and restarted FMS. Since then it seems to be running correctly. Last few checks of the schedule screen in FMS showed an OK status for the script run. I need to keep an eye on this.
This schedule has been in place for serveral months, and it was only in the past few days that the error showed up on the schedule screen.
I use Send Mail script step to send me server script errors. You need to set it up with SMTP but that is quite easy.
I put this after any script step that might create an error and set the subject of the email to the function that was just called.
I posted a version of this on our NY User Group web site.