Fiori App Manage Bank Accounts not working

Hey guys,

when I start the App Manage Bank Accounts, i get a loading screen and nothing is happening any more.

App Implementation: Manage Bank Accounts - SAP Fiori for SAP S/4HANA Finance - SAP Library

It could occure because i didnt customize the navigation target. But what exactly need to be configured here?

Help is highly appreciated.

Thanks

Chris