Fatal error: Uncaught Error: Call to undefined function stm_get_cart_items() in /wp-content/plugins/stm-motors-car-rental/templates/shop/cart.php:2 Stack trace: #0 /wp-content/plugins/stm-motors-car-rental/inc/templates.php(45): include() #1 /wp-content/plugins/stm-motors-car-rental/templates/reservation-archive.php(39): stm_car_rental_load_template('shop/cart') #2 /wp-content/plugins/stm-motors-car-rental/inc/templates.php(45): include('/wp-content/plu...') #3 /wp-content/plugins/stm-motors-car-rental/inc/actions_filters.php(93): stm_car_rental_load_template('reservation-arc...') #4 /wp-includes/class-wp-hook.php(287): stm_mcr_reservation_archive('') #5 /wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters('', Array) #6 /wp-includes/plugin.php(478): WP_Hook->do_action(Array) #7 /wp-content/themes/motors/page.php(4): do_action('stm_mcr_reserva...') #8 /wp-includes/template-loader.php(106): include('/wp-content/the...') #9 /wp-blog-header.php(19): require_once('/wp-includes/te...') #10 /index.php(17): require('/wp-bl in /wp-content/plugins/stm-motors-car-rental/templates/shop/cart.php on line 2