Hi there and welcome
Can you please remove the power to the base unit and the batteries from the hand unit.
Wait 5 minutes, connect the power to the base unit, then put the batteries back in and tell me if it now functions please Christopher.
Still the same message?
I am asking you Christopher if you still get the same message?
It is the internal power supply on the board that has faulted.
I am really sorry about this and you are going to have to return the phone to have it replaced. It will be covered by the warranty if this has not expired, and the replacement will be done at no cost to you.
I am really sorry about this, and if you have problems, or would like any additional information or assistance, please do not hesitate to let me know.