Fatal error: Uncaught Error: Call to a member function add_to_cart() on null in /data01/virt113477/domeenid/www.marintiganik.ee/htdocs/wp-content/plugins/woocommerce/includes/class-wc-form-handler.php:872 Stack trace: #0 /data01/virt113477/domeenid/www.marintiganik.ee/htdocs/wp-content/plugins/woocommerce/includes/class-wc-form-handler.php(844): WC_Form_Handler::add_to_cart_handler_simple(975) #1 /data01/virt113477/domeenid/www.marintiganik.ee/htdocs/wp-includes/class-wp-hook.php(324): WC_Form_Handler::add_to_cart_action('') #2 /data01/virt113477/domeenid/www.marintiganik.ee/htdocs/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #3 /data01/virt113477/domeenid/www.marintiganik.ee/htdocs/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #4 /data01/virt113477/domeenid/www.marintiganik.ee/htdocs/wp-settings.php(749): do_action('wp_loaded') #5 /data01/virt113477/domeenid/www.marintiganik.ee/htdocs/wp-config.php(107): require_once('/data01/virt113...') #6 /data01/virt113477/domeenid/www.marintiganik.ee/htdocs/wp-load.php(50): require_once('/data01/virt113...') #7 /data01/virt113477/domeenid/www.marintiganik.ee/htdocs/wp-blog-header.php(13): require_once('/data01/virt113...') #8 /data01/virt113477/domeenid/www.marintiganik.ee/htdocs/index.php(17): require('/data01/virt113...') #9 {main} thrown in /data01/virt113477/domeenid/www.marintiganik.ee/htdocs/wp-content/plugins/woocommerce/includes/class-wc-form-handler.php on line 872