REKORDBOX XML CANNOT BE READ! PROBLEM!

Hi,
I wanted to see my library  on my PC on my XDJ-RX2, when i push on the recordbox-button on my controller. But it doesnt show any audio files. So i decided to look where i may have to put my audio files in. As i saw the recordbox folder, the message "recordbox xml data couldnt be read properly". I linked my PC with it, but the library is empty plus i have no acces to it. Can anyone help me?