We have received reports that some of our customers have had problems using PayPal to pay for their orders at our online shop.
The most common reason for this is that PayPal has not recognized you as a verified account. Such unverified accounts are rejected between PayPal and our DL provider.
Luckily, the only thing you need to do to solve the matter is simple: Just go on your PayPal account and ask for verification. Once done and validated by PayPal, everything should work without problems.
You can find more information about this in PayPal's FAQ about this (version francais)