Jim,
The notice you are seeing is the same as was reported by other members, which was a bug, but it is not the same problem. In your case, you do need to update your credit card information, or post a Paypal deposit, as required by your membership level of RC Trading Plus.

If you do not wish to update your credit card information or post a Paypal payment, then we will need to lower your account level to Market Authorized. Please understand that doing this will remove your ability to take advantage of the ad enhancement features.

Please let me know what you wish to do.