Serial Number Has Been Revoked?

I am on a month-to-month plan for Adobe Premier.

Received a message when opening Premiere: "The Serial Number You Entered Has Been Revoked. This Product Cannot Be Licensed"

Its asking me for a new serial number.

In my Creative Cloud App, the status for Premier is "Trial Expired", but I've been using a licensed copy since the beginning of March. .

A payment just went on my Credit Card April 23rd.

How do I go about getting a new serial number?

Or get my account updated as paid in full, whatever.

I've got work to do with this product that I've paid for.