gotcha.
I disabled plugins one by one and identified “WP-PageNavi” as the one causing the problem. Question likely is, if the plugin itself is causing trouble, or if I it is my implementation/modification as required by the plugin.
If I disable the plugin temporarily, I get the following error message “Fatal error: Call to undefined function wp_pagenavi() in /homepages/23/d72588656/htdocs/app535047293/wp-content/themes/responsive/full-width-page.php on line 44”
Hope you can help me with this issue.
THX for now.