The acquirer (payment processor) rejected the payment. Quickpay doesn't release the order id in this case so the basket needs to be completely cancelled and regenerated. I don't have a solution for this beyond them clicking the cancel link at the bottom and retrying.
Normally a order, or payment, shouldn't be locked in when there's a refusal. Other payment providers do not do this. So we don't have a built in solution for this strange behavior Quickpay does. I've added a feature ticket to see if we can automatically cancel, regenerate, then redisplay the basket when this happens but am unsure of how well that'll work at this time.
forge.joomlapolis.com/issues/8887
A basket in a "Not initiated" state should be expiring though. It's strange that it's not. That usually only happens if it's in a Pending state.