I’ve converted your post from a private message to a thread in the Support section so Roon staff in @support can assist.
Can you describe your system, including the hardware on which your Roon Core is running ?
The Bricasti m5 is Roon Ready, so one way of connecting things would be to run Ethernet from your Core to the Bricasti and then connect an output from the Bricasti to the Lampizator DAC input you prefer. Your Core should then see the Bricasti as a Zone and you should hear music through the DAC after selecting the input connected to the Bricasti.
According to your screen pic, you are playing to the Bricasti as connected via the MAC. Not via Ethernet. Try Choosing the M5 as the output zone and see if that changes things.
You can change output zones, by clicking on the volume icon at the bottom, click the Switch Zones and then choose teh M5
Can you confirm you do not have a usb cable plugged into the Bricasti from your Mac? Having a usb connection can/will disable the AES output, if you have then remove it and reboot the Bricasti.