There was an error but I was unable to store the error message in the log file. The message was PHP Fatal error: Uncaught Error: Call to a member function get_image_id() on bool in /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/wp-content/plugins/cf-products-brochure/include/functions.php:1502 Stack trace: #0 /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/wp-includes/class-wp-hook.php(324): add_variation_images_to_gallery() #1 /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/wp-includes/plugin.php(205): WP_Hook->apply_filters() #2 /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-data.php(884): apply_filters() #3 /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-product.php(621): WC_Data->get_prop() #4 /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/wp-content/themes/monki/functions/woocommerce-functions.php(343): WC_Product->get_gallery_image_ids() #5 /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/wp-includes/class-wp-hook.php(324): mk_template_loop_product_thumbnail() #6 /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #7 /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/wp-includes/plugin.php(517): WP_Hook->do_action() #8 /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/wp-content/plugins/woocommerce/templates/content-product.php(42): do_action() #9 /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/wp-includes/template.php(812): require('...') #10 /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/wp-content/plugins/woocommerce/includes/wc-core-functions.php(284): load_template() #11 /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/wp-content/plugins/woocommerce/templates/archive-product.php(62): wc_get_template_part() #12 /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/wp-includes/template-loader.php(106): include('...') #13 /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/wp-blog-header.php(19): require_once('...') #14 /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/index.php(17): require('...') #15 {main} thrown in file /var/www/php/wordpress/www.aki.com.ec.jail/www.aki.com.ec/wp-content/plugins/cf-products-brochure/include/functions.php on line 1502