M-Audio Prokeys Sono 88 - Can't hear the playback

Hi

I run Mac Os Sierra (10.13.4), I could download the Prokeys Sono 88 driver but it wouldn't install.

I decided to forget about that issue and I plugged the keyboard via USB and hooked it to my Sapphire pro 26 via Midi cable too.

Set it up as an external instrument in Logic. The problem is when I record I can see the midi note the keyboard is sending but when I playback... no sound.

I had to create another audio instrument in Logic to hear something, but it's now an audio region not a midi...

Any help?