File Not Found - Rekordbox Version 6.7.7

I am having an issue with Rekordbox verison 6.7.7 where all of my newer tracks are able to be found and played. However, all older tracks from a previous version of Rekordbox throw a "File Not Found Error." All of the tracks are in the same place on the USB, the filepath points directly to all tracks, and the auto-relocate function does not work.