I tunes files are blocked, not found in Cross DJ

Hello,
If I select a iTunes file in Cross DJ it is directly flagged with a red square with a black Cross. Error: Can't load track file not found.
On opening Cross DJ (2.6.0) I get a popup to download version 3.2.1.
That's what I did however if I try to install the download on my mac I get another error: Cross DJ 3.2.1.dmg image not recognised.
I think these two issues relate but don't know how to fix it.
Anyone any thoughts?
Thanks,
Peter
If I select a iTunes file in Cross DJ it is directly flagged with a red square with a black Cross. Error: Can't load track file not found.
On opening Cross DJ (2.6.0) I get a popup to download version 3.2.1.
That's what I did however if I try to install the download on my mac I get another error: Cross DJ 3.2.1.dmg image not recognised.
I think these two issues relate but don't know how to fix it.
Anyone any thoughts?
Thanks,
Peter