OK thank you for your answer, so my impression is one of my crew put outside the folder some files inside to aja folder, and after this loose all the other files, looks like him do it something strange or maybe the cable was not connect perfectly.
Anyway the HD is not visible trough MBP and if i put on the KiPro immediately ask to format.
i have try to repair the HD trough Apple Disc Utility but is not possible to repair anything, the HD is visible only inside Apple Utility Disk.
Anyway i will try your suggestions and we will see.
Thank you
Leonardo De Mai