404. That’s an error.
The requested URL /bookmarks/mark?op=edit&output=popup&bkmk=https%3A%2F%2Fwww.perspektive-mittelstand.de%2FCenter-Enterprise-Resource-Planning-waechst-weiter%2Fpressemitteilung%2F91619.html&title=Center+Enterprise+Resource+Planning+w%E4chst+weiter+-+Pressemeldung+vom+21.02.2017
was not found on this server. That’s all we know.