Rekordbox songs from iTunes no longer working.

I currently own a ddj-1000 and up into recently everything was working fine. I don't know if this has anything to do with the last update but a lot of my iTunes songs are no longer working and no have that Ghostbuster red sign. Says there no longer compatible with rekordbox. Any ideas on what can be the problem. All my music is purchased and everything was working fine until recently.