Troubleshooting error codes

When a credit card payment transaction reaches the "payment gateway" but the card is rejected, an error response code appears inside the red box on the payment screen. These error codes are generated by the payment gateway provider.

Below are the main reasons an error could pop up.

There was an issue processing the card. IE: Timeout issue, network interruption, etc.
Solution: Attempt the card again

The transaction amount is lower than the allowed Minimum card charge amount
Solution: Notify the customer of the minimum amount you accept or adjust the Minimum charge amount setting

If retrying the card doesn't work and it's above the minimum amount then the issue could be the card itself.
Solution: The customer needs to reach out to their bank and see if there is a block or an info mismatch