Fatal error: Uncaught Error: Call to undefined function is_plugin_active() in /home/zornicab/public_html/new/wp-content/plugins/reorder-post-within-categories/public/class-reorder-post-within-categories-public.php:419 Stack trace: #0 /home/zornicab/public_html/new/wp-includes/class-wp-hook.php(308): Reorder_Post_Within_Categories_Public->override_woocommerce_products(0, Object(WP_Query), 'category', 39, 'post') #1 /home/zornicab/public_html/new/wp-includes/plugin.php(205): WP_Hook->apply_filters(0, Array) #2 /home/zornicab/public_html/new/wp-content/plugins/reorder-post-within-categories/public/class-reorder-post-within-categories-public.php(260): apply_filters('rpwc2_allow_cus...', 0, Object(WP_Query), 'category', 39, 'post') #3 /home/zornicab/public_html/new/wp-content/plugins/reorder-post-within-categories/public/class-reorder-post-within-categories-public.php(147): Reorder_Post_Within_Categories_Public::is_ranked('category', 39, 'post', Object(WP_Query), false) #4 /home/zornicab/public_html/new/wp-content/plugins/reor in /home/zornicab/public_html/new/wp-content/plugins/reorder-post-within-categories/public/class-reorder-post-within-categories-public.php on line 419