I keep getting a error when I swipe the card

[Pappigg]

I keep getting a error when I swipe a card

[Pappigg]

I keep getting a error message when I run a card

[VanKalkerFarms]

you'll have to give some information about your situation so we can try and help.

what device, and operating system version, what kind of credit card reader do you have?   what is the error you see?