After attempting to add Adsense to the sidebar.php I received the following error:
Fatal error: Call to undefined function: wp_list_categories() in /home/search/public_html/blog/wordpress/wp-content/themes/default/sidebar.php on line 54
I then attempted to correct sidebar.php by removing the adsense code but the error remains. I also replaced sidebar.php with a copy from the download file but the error remains.
All help would be appreciated. Thank you.