After the consumption machine has been used for a period of time, swiping the card suddenly shows the non-system card

Details of the problem:

Hello, after the consumption machine has been used normally for a period of time, the card suddenly shows a non-system card, what is the problem?

Expert answer:

Hello, first of all thank you for using our product, there are two possibilities for this situation:

First: The card type you are using is not authorized.

Second: It may be that the firmware of the consumption machine you are using is relatively old, and the data stored in the machine is lost. If it is a firmware problem, please contact our company's technical staff.

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