Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, non-static method RP_Geositemap::add_to_wpseo_sitemap() cannot be called statically in /home/pibuzzco/public_html/adoptionsearcher.com/wp-includes/class-wp-hook.php:324 Stack trace: #0 /home/pibuzzco/public_html/adoptionsearcher.com/wp-includes/plugin.php(205): WP_Hook->apply_filters('', Array) #1 /home/pibuzzco/public_html/adoptionsearcher.com/wp-content/plugins/wordpress-seo/inc/sitemaps/class-sitemaps-renderer.php(81): apply_filters('wpseo_sitemap_i...', '') #2 /home/pibuzzco/public_html/adoptionsearcher.com/wp-content/plugins/wordpress-seo/inc/sitemaps/class-sitemaps.php(431): WPSEO_Sitemaps_Renderer->get_index(Array) #3 /home/pibuzzco/public_html/adoptionsearcher.com/wp-content/plugins/wordpress-seo/inc/sitemaps/class-sitemaps.php(366): WPSEO_Sitemaps->build_root_map() #4 /home/pibuzzco/public_html/adoptionsearcher.com/wp-content/plugins/wordpress-seo/inc/sitemaps/class-sitemaps.php(279): WPSEO_Sitemaps->build_sitemap('1') #5 /home/pibuzzco/public_html/adoptionsearcher.com/wp-includes/class-wp-hook.php(324): WPSEO_Sitemaps->redirect(Object(WP_Query)) #6 /home/pibuzzco/public_html/adoptionsearcher.com/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters('', Array) #7 /home/pibuzzco/public_html/adoptionsearcher.com/wp-includes/plugin.php(565): WP_Hook->do_action(Array) #8 /home/pibuzzco/public_html/adoptionsearcher.com/wp-includes/class-wp-query.php(1881): do_action_ref_array('pre_get_posts', Array) #9 /home/pibuzzco/public_html/adoptionsearcher.com/wp-includes/class-wp-query.php(3852): WP_Query->get_posts() #10 /home/pibuzzco/public_html/adoptionsearcher.com/wp-includes/class-wp.php(696): WP_Query->query(Array) #11 /home/pibuzzco/public_html/adoptionsearcher.com/wp-includes/class-wp.php(816): WP->query_posts() #12 /home/pibuzzco/public_html/adoptionsearcher.com/wp-includes/functions.php(1336): WP->main('') #13 /home/pibuzzco/public_html/adoptionsearcher.com/wp-blog-header.php(16): wp() #14 /home/pibuzzco/public_html/adoptionsearcher.com/index.php(17): require('/home/pibuzzco/...') #15 {main} thrown in /home/pibuzzco/public_html/adoptionsearcher.com/wp-includes/class-wp-hook.php on line 324