Access to mirror from iMac

I can access the Mycloud mirror from my phone through the app. But on my iMac the log in screen I can not. It has a name line and will not accept any typing. But the password line does.
If I use the web cloud.com it says it can’t connect.

Hi,

The My Cloud Desktop App is no longer supported: https://support-en.wd.com/app/answers/detail/a_id/25159