Did not work on me

I just bought this today, hoping to clean up my dup photos. I have a library of 353.58 GB and store it on an external hard drive due to its size. While I could successfully add my library to the dialog box of the software, it told me repeatedly “No photo(s) detected in the selected path(s). Please change the Preferences or select another path.” when I click on “Scan for Duplicates”. Please fix it. Thanks!

whowhowho about Duplicate Photos Fixer Pro, v1.9.1