Booking canceled for Hotel xy in Barcelona

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Just received a message in my inbox from booking.com
This reservation was canceled because of an invalid credit card.
Dear JH,
Your reservation at Hotel XY is now canceled. You don’t need to do anything else, but if you have questions for the property, feel free to contact them at ......
Why?
Reservation was confirmed 7 days ago. I have used my VISA electron card. Should I email booking.com? Can they charge me again even if my hotel booking was cancelled?
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Hotel booking without prepayment 2022
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