Fatal error: Uncaught Error: Call to undefined function () in /data01/virt104718/domeenid/www.montonissa.eu/htdocs/wp-content/plugins/woocommerce/includes/admin/helper/class-wc-helper-updater.php:1 Stack trace: #0 /data01/virt104718/domeenid/www.montonissa.eu/htdocs/wp-content/plugins/woocommerce/includes/admin/helper/class-wc-helper.php(58): include_once() #1 /data01/virt104718/domeenid/www.montonissa.eu/htdocs/wp-content/plugins/woocommerce/includes/admin/helper/class-wc-helper.php(42): WC_Helper::includes() #2 /data01/virt104718/domeenid/www.montonissa.eu/htdocs/wp-content/plugins/woocommerce/includes/admin/helper/class-wc-helper.php(1760): WC_Helper::load() #3 /data01/virt104718/domeenid/www.montonissa.eu/htdocs/wp-content/plugins/woocommerce/includes/wccom-site/class-wc-wccom-site.php(39): require_once('/data01/virt104...') #4 /data01/virt104718/domeenid/www.montonissa.eu/htdocs/wp-content/plugins/woocommerce/includes/wccom-site/class-wc-wccom-site.php(26): WC_WCCOM_Site::includes() #5 /data01/virt104718/domeenid/www in /data01/virt104718/domeenid/www.montonissa.eu/htdocs/wp-content/plugins/woocommerce/includes/admin/helper/class-wc-helper-updater.php on line 1