VOXL 2 Starling - No ELRS response/Transmitter error

[JoeAR_21]

I've ran into some issues with getting the MAV to fly, when I try to use voxl-elrs --bind I get no response/connection & there is no connection made to the Qgroundcontrol application, it was previously working fine. When I try to run the wizard or scan for devices I get:

[ERROR] Error reading device information.
[ERROR] Ensure that transmitter is turned off and receiver is not in bootloader mode. 

Is there a command to restart the transmitter or other possible cause?