We are using woocommerce and the integration goes well with the sandbox, however, once we change it to live and try to do a payment it doesn't process the payment and generates the following message "Things don’t appear to be working at the moment. Please try again later."
We have tried all what we know to solve this without any success.
We have used several plugins with the same results. Currently we are using the plugin "Woocommerce PayPal Express Gateway".