Hello, Juergen,
Thank you for contacting us and for using XStore.
Here is what we can see on the desktop – https://prnt.sc/bWcOq7hjK9Jf , no “zzgl. Versandkosten” text.
We would recommend you find out what plugin added “zzgl. Versandkosten” text, and contact the support team of that plugin.
Kind Regards,
8theme team