Error on opening Fiori Launchpad in the Hana Cloud Platform "Unable to load groups"

Hi,

I've seen that there is now a trial version of the Fiori Launchpad in the Hana Cloud Platform (Trial Version).

After subscribing and activating the Launchpad, I've clicked on the url to open the Launchpad.

But then an error occurs "Unable to load goups".

The urls I've tried are:

https://flpportal-<account>.dispatcher.hanatrial.ondemand.com/sap/hana/uis/clients/ushell-app/shells/fiori/FioriLaunchpad.html

and

https://flpportal-<account>.dispatcher.hanatrial.ondemand.com/sap/hana/uis/clients/ushell-app/shells/fiori/FioriLaunchpad.html?mode=admin

Has somebody a hint for me or can tell me what I'm doing wrong?