Wipe Free Space Error

I recently ran wipe free space and stopped accidentally. I now have 13.1mb compared to the 40gb I started with before I ran it. I can't find the temporary files anywhere. What can I do to reclaim my free space ?

You can either manually delete the leftover file(s) from the root of the disk you ran Wipe Free Space on, or you can run Wipe Free Space again and allow it to run uninterrupted until it finishes which will reclaim the lost disk space.