No sé si será esto:
2019-03-27T12:04:13+00:00 CRITICAL Uncaught Exception: Pedido no válido. in /srv/stockmarca/site/wp-content/plugins/woocommerce/includes/data-stores/abstract-wc-order-data-store-cpt.php:100
Stack trace:
#0 /srv/stockmarca/site/wp-content/plugins/woocommerce/includes/class-wc-data-store.php(159): Abstract_WC_Order_Data_Store_CPT->read(Object(WC_Order))
#1 /srv/stockmarca/site/wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-order.php(111): WC_Data_Store->read(Object(WC_Order))
#2 /srv/stockmarca/site/wp-content/plugins/woo-redsys-gateway-light/woocommerce-redsys.php(747): WC_Abstract_Order->__construct(51252)
#3 /srv/stockmarca/site/wp-content/plugins/woo-redsys-gateway-light/woocommerce-redsys.php(676): WC_Gateway_Redsys->get_redsys_order(51252)
#4 /srv/stockmarca/site/wp-includes/class-wp-hook.php(286): WC_Gateway_Redsys->successful_request(Array)
#5 /srv/stockmarca/site/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(”, Array)
#6 /srv/stockmarca/site/wp-includes/plugin.php(453): WP_Hook->do_action(Array)
#7 /srv/sto en /srv/stockmarca/site/wp-content/plugins/woocommerce/includes/data-stores/abstract-wc-order-data-store-cpt.php en la línea 100