Slides don't show up after I moved my WordPress files to root directory

After building my site in a WP directory, I moved the files to the root directory. Slideshow Gallery pictures do not show up but they are in the folder that was also moved. Instead of re-uploading all the image files (70 to be exact), is there a simple code I need to modify to locate the files? I deactivated and re-activated but it still doesn’t work.

https://www.ads-software.com/extend/plugins/slideshow-jquery-image-gallery/