Internal Error When Trying To Pay With A Credit Card Today

I was trying to place two separate orders for clients today and my credit cards would not work. Both credit cards are active and without holds. I got an "Internal Error" message in red with no way to fix it. I was able to use my PayPal account to complete the transactions. If this is a sitewide issue, many sales could be lost. Anyone else?

P.S. The bug thread I found was closed. So I couldn't find where to put this.