Rexordbox iTunes integration problem

Hi! I'm having trouble with Rekordbox reading my iTunes library.

I bought a new Macbook, and tried to import my rekordbox collection. But I had to change my hard disk name, so although the tracks are on the same location, the path its not exactly the same as in my old Macbook.

I´m new to rekordbox so I thought OK, lets intstall it from scratch and start over.

I uninstalled and installed it again but now Rekordbox only read some itunes tracks, and some other ones are looked up in the old path.

New Hard Disk name its rodrigogonzalo and the old one rodigogonzales as you can see in the images under.

How can I unistall all from scratch and start over?

Thanks in advance!