My Cloud Home "Photo" folder backup/copy is not possible!

I have single drive “My Cloud Home” device.

I want to copy the “Photo” folder from the “My Cloud Home” drive to an external disk for backup reason.
The “Photo” folder I can access over the web interface “” is not available on the desktop file share.

The download over the web browser is not a solution for me (more than 10k pictures).

Is there a solution for this problem?

Thanks for your help