We always recommend that you try again with another Klarna account because Klarna declines orders for the following reasons:
The amount of the purchase was to high for your Klarna credit score to approve.
Missed or delayed payments or reported financial hardship can lead to being blocked from further using Klarna.
Attempting too many purchases in a short amount of time may result in being rejected (fraud prevention)
The approval decision is not based solely on credit score, but rather on multiple data points
(https://www.klarna.com/uk/customer-service/why-cant-i-pay-with-klarna-anymore/)
Otherwise, we recommend trying another payment method like PayPal, Credit card or IDEAL.