Rotel A14 MKII Integrated Amplifier With DAC, Bluetooth, and MQA Support 134331890713 but the display shows "Err"

but the display shows "Err" when testing shaker functionality

Manufacturer Fujikin Model Number FCST1005MZFC-4CL2-F2L-H2-U037-EP SKU 19-39552 Ref 23-51820

Manufacturer Cisco Model Number ONS-SE-622-1470 SKU 19-04068 Ref 23-29633

Manufacturer Shure Model Number MX202W-A/C SKU 19-77854 Ref 23-111452

Manufacturer Integra Biosciences Model Number ViaFlo 96 SKU 19-77972 Ref 23-111965

Rotel A14 MKII Integrated Amplifier With DAC, Bluetooth, and MQA Support 134331890713 but the display shows "Err"This item is out of stock. Contact us to be notified when it becomes available again. Specifics Manufacturer Rotel Model Number A14 MKII SKU 19 79064 Ref 23 113943