WD Photos for Iphone freezes on the First Time Setup screen

Got a WD My Cloud Mirror Drive.

I Can access it, without problems,  trough “My cloud” app on the Iphone 4S but cant access if I use “WD Photos” app. Screen gets stuck on  First Time Setup screen.

Already tried to turn off and on the device but keeps freezing at First Time Setup screen.

Can you help me out on how to make this app run on Iphone?

Welcome to the Community.

Does the WD My Cloud app work? Or is it also freezing on your phone? Which version of iOS do you run? Did you try re-installing the app as opposed to rebooting your NAS?