Dectect if files in folder if not cancel workflow

Automator Newbie here. Please be gentle. Hope this is the right place.

I made a simple workflow that would take files from one folder and transfer them to another place. Works fine AS LONG as there are files in the folder. If no files then I get an error message. Since this is one item to be done in a batch run of other items, I need this to work files in folder or no files. I need to either have it not run if there are no files in original folder OR suppress the error message.

How to do this?

Thank you.