Hola a todos, tengo el mismo problema, revisé el log y me dice esto:
[06-Apr-2020 15:00:34 UTC] PHP Warning: file_get_contents(): SSL: Connection reset by peer in /home/bahggvxg/public_html/wp-content/plugins/calculo-de-despacho-via-starken-para-woocommerce/calculo-starken-woocommerce.php on line 179
[06-Apr-2020 15:00:34 UTC] PHP Warning: file_get_contents(): Failed to enable crypto in /home/bahggvxg/public_html/wp-content/plugins/calculo-de-despacho-via-starken-para-woocommerce/calculo-starken-woocommerce.php on line 179
[06-Apr-2020 15:00:34 UTC] PHP Warning: file_get_contents(https://www.anyda.xyz/origen): failed to open stream: operation failed in /home/bahggvxg/public_html/wp-content/plugins/calculo-de-despacho-via-starken-para-woocommerce/calculo-starken-woocommerce.php on line 179
[13-Apr-2020 22:51:29 UTC] default_length was called incorrectly. No se debería acceder a las propiedades del producto directamente. Backtrace: require(‘wp-blog-header.php’), require_once(‘wp-includes/template-loader.php’), do_action(‘template_redirect’), WP_Hook->do_action, WP_Hook->apply_filters, WC_AJAX::do_wc_ajax, do_action(‘wc_ajax_add_to_cart’), WP_Hook->do_action, WP_Hook->apply_filters, WC_AJAX::add_to_cart, WC_Cart->add_to_cart, do_action(‘woocommerce_add_to_cart’), WP_Hook->do_action, WP_Hook->apply_filters, WC_Cart->calculate_totals, WC_Cart_Totals->__construct, WC_Cart_Totals->calculate, WC_Cart_Totals->calculate_shipping_totals, WC_Cart_Totals->get_shipping_from_cart, WC_Cart->calculate_shipping, WC_Shipping->calculate_shipping, WC_Shipping->calculate_shipping_for_package, WC_Shipping_Method->get_rates_for_package, Starken_Shipping_Method->calculate_shipping, WC_Abstract_Legacy_Product->__get, wc_doing_it_wrong. This message was added in version 3.0.