Oh, dear! I am afraid you have what is often known as 'The keiki of death'. These come up through the crown, hopefully fully develop the keiki, and then the mother plant dies. I've had one do that. I was able to keep the keiki and it is doing well, though not blooming yet. Others have had plants live on successfully even with this growth.
Just let nature take it's course, that's all you can do. Post a picture in a couple of weeks.