Error with Fiori Launchpad to adapt the UI

Hello everyone,

I wanted to adapt a Fiori app in my Launchpad. Unfortunately when I click on the "Adapt UI"-button (see picture 1) I get the following error (see picture 2). Can anybody help me with this issue? I´ve tried already a lot without any success. I would be grateful for every tip and help.

click-adapt-ui.png

error-launchpad.png

Thanks in advance.

Best regards