Unable to connect to my own device after being added to another

I’ve had no trouble reaching my device from outside home until somebody added me to their device and sent me a share. Now my iPhone app only shows shares from their device and not my device.

My mac desktop app works fine but I really need to be able to backup my iPhone pics. Any help would be really appreciated.

Change the device back to yours by pressing the hamburger menu in the top left corner of the app.

It only shows one device, the wrong one. Mine is no longer shown.