Can not log in to Identity Safe

Using IE 11 on a Windows 7 pro version 6.1

Identity safe is part of my Norton 360, version 22.5.2.15

There is the button on the Norton Toolbar to open the vault.

Usually I just click there and then comes the window to log in.

Now, when I click that vault button I get this "Get started" window with another button to sign in.

After clicking there comes a short window "Communicating with the Norton Server" and then the sign in window.

After signing in there that window closes and brings me back to the "Get started" window.

I can log in to my vault through the Norton Website.

Any ideas what's wrong and how I can fix this again?

Many thanks for your help.