Hello and Thank you to everybody.
I've now done the check of the landscape again.
I've no idea why it works now, but it does.
I've removed ERP-Productversion so that I only have SAP NW 7.4, EWM Standalone and EWM UI Feature.
Aftert that I made the verficiation again and now I can execute it for SAP NW 7.4, not EWM, because this isn't a standalone.
Kind regards