My Apollo II has stopped working. It seems to light up when you power it on. But it does not hash any longer. It does not heat up. I have been using it with a Apollo II Full Node. I purchased it last November. I had it connected via the USB to my Apolo II full node, which still works perfectly. I changed out the USB cable hoping that was the issue. I received this on 12/11/2024 and it has quit properly working within six months. Any suggestions would be appreciated.