Fatal error: Uncaught Error: Call to undefined function WC() in /data05/virt41565/domeenid/www.rameedia.eu/digikaart/wp-content/plugins/product-extras-for-woocommerce/inc/functions-cart.php:2235 Stack trace: #0 /data05/virt41565/domeenid/www.rameedia.eu/digikaart/wp-includes/class-wp-hook.php(324): pewc_check_cart_key('') #1 /data05/virt41565/domeenid/www.rameedia.eu/digikaart/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #2 /data05/virt41565/domeenid/www.rameedia.eu/digikaart/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #3 /data05/virt41565/domeenid/www.rameedia.eu/digikaart/wp-includes/template-loader.php(13): do_action('template_redire...') #4 /data05/virt41565/domeenid/www.rameedia.eu/digikaart/wp-blog-header.php(19): require_once('/data05/virt415...') #5 /data05/virt41565/domeenid/www.rameedia.eu/digikaart/index.php(17): require('/data05/virt415...') #6 {main} thrown in /data05/virt41565/domeenid/www.rameedia.eu/digikaart/wp-content/plugins/product-extras-for-woocommerce/inc/functions-cart.php on line 2235