Checkout error: no_payment_identifier

If you get this error on the bottom of the payment page, please remove your current cards from the file (in your payment profile) and add the cards back. That should refresh current cards in the system and should remove the no_payment_identifier error. 

You may need to temporarily disable your automatic renewal to be able to remove the cards from file: Turning Automatic Renewal On/Off for all domains and products

Then you can follow this tutorial to add your cards back: 
Unable to add a payment profile
Adding a Payment Profile to your account