Asiair Nikon D5600 problem

Hello

Im helping my father with his Nikon D5600.

He has borrow my Asiair plus, too test on his Nikon D5600.

The Asiair finds the camera in the app

But when he takes a photo it says exposure fail.

We have tried different usb cabels, disable wifi on camera, update firmware on camera and asiair

And tried diffrent settings and exposure settings.

Anyone seen this problem?

Thanks in Advance