Fatal error: Uncaught Error: Call to undefined function bp_is_activity_component() in /homepages/18/d644743527/htdocs/BKG/wp-content/plugins/members-page-only-for-logged-in-users/members_page_only_for_logged_in_users.php:160 Stack trace: #0 /homepages/18/d644743527/htdocs/BKG/wp-includes/class-wp-hook.php(286): members_page_only_for_logged_in_users('') #1 /homepages/18/d644743527/htdocs/BKG/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #2 /homepages/18/d644743527/htdocs/BKG/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #3 /homepages/18/d644743527/htdocs/BKG/wp-includes/general-template.php(2614): do_action('wp_head') #4 /homepages/18/d644743527/htdocs/BKG/wp-content/themes/twentyseventeen/header.php(22): wp_head() #5 /homepages/18/d644743527/htdocs/BKG/wp-includes/template.php(688): require_once('/homepages/18/d...') #6 /homepages/18/d644743527/htdocs/BKG/wp-includes/template.php(647): load_template('/homepages/18/d...', true) #7 /homepages/18/d644743527/htdocs/BKG/wp-includes/general-te in /homepages/18/d644743527/htdocs/BKG/wp-content/plugins/members-page-only-for-logged-in-users/members_page_only_for_logged_in_users.php on line 160