MyCloud.com Account for My Cloud EX2 Ultra!

Hello, I bought a MY Cloud EX2 Ultra two weeks ago. by setting up this device I had problem !! I can’t create “MyCloud” account to access from Samrtphone. I always get the message Error “Undefined” I need help or support quickly.

My Cloud OS 3 Version (2.41.116)

Best Regards

Immanuel