Do you have SONOFF Zigbee hub?
If no, then the board may be WiFi model. Using WiFi with Hubitat is not easy or not possible at all, because every manufacturer has its own proprietary protocol.
Sorry, I also do not remember how did I pair my MHCOZI board to HE.. There is a long thread on pairing this device here : Driver/Pairing -> MHCOZY 4 Channel 12V ZigBee Relay Switch
