You can read the official post from the Director of the company, he posted it a minutes ago:https://forums.darkfallonline.com/showthread.php?426595-Service-disruption
We have been involved with Darkfall for over 13 years now and it is our hope that we will be able to continue well into the future with your support. Unfortunately, and against our best efforts, the conditions in Greece have caught up with us and do not allow us to continue operating the game as we have been so far.
We hope that the disruption of Darkfall Unholy Wars service is temporary and that we will be back soon in a more sustainable format. We apologize for the inconvenience to all that are affected."
Reading between lines, it seems as if they have to close it for now but are planning on reviving it soon as a free to play model, they had been supossedly working on f2p model for months anyway...This is also the perfect excuse to reset chars and server and do a fresh server start.