Accessories not supported

I got a new headboard and it happened to have a charging port built in. I’ve used it to charge my phone for over 2 weeks now. But in the last 2 days I’ve suddenly been getting the message ‘this accessory not supported’. It’s not the cord. I’ve checked. So it’s the port in the headboard. But how did it work for 2 weeks only to all of the sudden not work? What gives? And can I get around this so I don’t have to move my massive furniture around to plug my phone in?