My calculator doesn't turn on anymore

My calculator doesn't turn on anymore

My calculator stopped working out of no where. It doesn’t turn on no matter what I do. When i plug it in the orange light indicates it is charging. It will turn green after a while indicating it is fully charged. But when i plug it out and plug it in immidiatly after it goes through the same process again. It just doesn’s seem to charge. Does anyone know if there is a fix for this problem?