Wochenrückblick #2

Fatal error: Uncaught Error: Call to undefined function dsq_is_installed() in /var/www/web687/html/wordpress/wp-content/plugins/force-ping-display-with-disqus/forceping.php:15 Stack trace: #0 /var/www/web687/html/wordpress/wp-includes/class-wp-hook.php(287): ts_show_pings('/var/www/web687...') #1 /var/www/web687/html/wordpress/wp-includes/plugin.php(206): WP_Hook->apply_filters('/var/www/web687...', Array) #2 /var/www/web687/html/wordpress/wp-includes/comment-template.php(1530): apply_filters('comments_templa...', '/var/www/web687...') #3 /var/www/web687/html/wordpress/wp-content/themes/wp-newstrick/content-single.php(262): comments_template('/comments.php', true) #4 /var/www/web687/html/wordpress/wp-includes/template.php(725): require('/var/www/web687...') #5 /var/www/web687/html/wordpress/wp-includes/template.php(672): load_template('/var/www/web687...', false) #6 /var/www/web687/html/wordpress/wp-includes/general-template.php(168): locate_template(Array, true, false) #7 /var/www/web687/html/wordpress/wp-content/themes/ in /var/www/web687/html/wordpress/wp-content/plugins/force-ping-display-with-disqus/forceping.php on line 15