Caja Rename erasure problem

I was renaming some photos with caja rename chose to overwrite some files but now I can't find those files ( with whateber name they may have ) at all. It's like they've been erased . Is there a way to get them back or what . This was a big screw up and I've never had this happened to me before.

Did you look in the Trash or Deleted folder?

I tried to look into trash but having trouble viewing that as well. Thankfully solved the problem with testdisk..... Really thankful for those that make these kind of programs. It lets me sleep better at night knowing this simple recovery tool is available.