In Live Mode, Pro Sites is not recognizing successful payment of the Pro Sites membership fee. Please provide some debugging steps to ensure all the settings are right. I double checked my API details and the API details are correct. I also have Paypal Web Payments Pro set up on my paypal account. Currently, Paypal Pro is not enable and I am using Paypal Express Checkout. Please provide any debugging steps that would be useful here. I need to reach conclusion on this and working with Pro Sites has been a long lived nightmare with all the lack of support.