Anyone can help please...!!!!

Install Zen Cart (2/3)

The installation can not be completed:

- You cannot install more than one script in the root directory of a domain.

Click on the browser's Back button to fix reported errors.

I uninstalled zen cart by deleting from Public_html directory. And now trying to reinstall again but the above message appear.

Can anyone point to me where exactly is the script? and the root directory it is located? i need to remove it clean.