Credit card processor is currently rejecting all CC transactions with a 461 response code. In touch with the processor who is in touch with the bank. Nightly billing has been postponed until resolved tomorrow.
May 19: due to unforeseen circumstances, we are abandoning our current card processor is switching systems. Billing is on target to be restored by Monday, May 22.
May 21 12:29 AM EDT: billing system is functional.