DDJ RX DVS

sought help with installation DVS

I have tried everything I could find in this forum but the solution is not be found

controller DDJ RX

turntable connected to channel 1 and 2
switch to PC mode
RB-VS1-K reccords on it.

I hear a sound with play (beep) that seems good to me.

license recordbox ok
license DVS ok

in the settings dvs.
I have activated the funcie dvs
but here I have no green circles, when I press the calibration I get ERROR after a few seconds! to see.

i can not select DVS in the audio menu in recordbox only phono or cd/line at the input channels.

I use recordbox on a mac
latest recodbox version
ddj rx has also received the latest firmware.

when i look at sound menu in the mac

(Recordbox Aggregate device )there is a sound input when i play the rb vs1 k

because i have no answer  and i'm getting fustrated. i have connect my set up to a windows laptop that is working . so i can conclude is the mac problem but what is it.

i have also re installed recorbox and the audio drivers still no  signal.

please help...

what am I doing wrong