We've been dealing with our PayPal representative about the issue, which appears to be born out of a misunderstanding regarding account information for 19.5 Degrees (E-junkie's parent company).
This is an issue that popped up briefly a few weeks ago and was quickly solved as something PayPal described to us at the time as a "glitch" while simultaneously telling our clients who had called about the issue that it was something on "our end."
Unfortunately PayPal decided to restrict the 19.5 Degrees account without notice this morning despite earlier communications to the contrary, which is also disabling our API key necessary to communicate between users of PayPal Website Payments Pro and our cart, and their service agents are again telling our mutual clients that this is a problem on our end
We again apologize that this issue between PayPal and E-junkie has caused so much disruption for our clients, and we hope to see the issue resolved shortly. We are also making sure that something like this cannot possibly happen again due to a misunderstanding on PayPal's part.