When I entered a credit card number in the numbers turned red

[prbyashli]

Hi, I have a small business and use this for my credit card payments. Today while entering a card the number turned red and wouldn't continue the transaction. Any clue why is doing this? The other two went in with no problem.

[DPCreations]

Where are you entering the credit card numbers?

[prbyashli · Accepted solution]

It was too run them for payment. I figured it out. Had mixed up one of the numbers in the card.