Tonight Paypal changed their IPN API a little and all our sales went south. We have found the changes and implemented a fix. We are sorry for the inconvenience of that incident. We are currently registering the missing sales and will be finished in a few minutes.
If you bought something from us you may waited now for 8 hours to get your download mail and we are sorry for the delay! All systems are back to green now!
For all the paypal developers out there, who were (like us) not following any update notifications from paypals side and got into problems with the IPN: the IPN call URL changed from non-ssl to ssl only!