Quarrel between external HD and Kodi 10.0.1

Hi, I have a problem that has been recurring for a while but I don't know why!

I connect an external HD to the USB port (through an adapter that allows you to bring the SATA output to USB 2.0) and that I feed with a valid power supply (it has always worked, the disc turns on)

Well, for some time now it happens that at the beginning of the film this freezes and no command allows you to govern the Kodi!

So you have to brutally restart, but when you restart the Kodinon it sees plus this HD: all the folders and fanarts remain, BUT if I try to start the video it tells me that the peripheral is disconnected.

And I have no way to see this HD again until I reconnect it to the PC.

After that sometimes nothing happens, other times I restart the interrupted film and see it all too ...

Do you have any idea what is causing this?

tks

Can anyone help me? Didn't I make myself clear? Anyone who has encountered the same problem as an HD that at some point is no longer seen?

my HD is powered externally. Being a "3.5 SATA it needs power. It worked like this until recently, it still works like this if I connect it to the PC to upload / move videos.