Failed transaction
There are many different reasons why your card purchase could not be completed. The most common thing is that your card is not open for these types of transactions. Contact your bank and ask them to for help to open your card for internet transaction and remove other blocks that could be in the way.
Another problem may be the credit limit on your credit card is reached or not enough funs on your debit car. Try to lower your amount or contact your bank to check the balance.