From site's staff on their Facebook page:

Update....I have just been told that, although the site is back up the tracker is still switched off so torrents will not work at the moment. We may have to migrate to a larger server so it will be easier to do this if people are not downloading at the time. I will let you know any other information as I get it Please keep checking back to see further updates.

(Anyone who is unable to download or seed will need to change their client. Please scroll through the comments to find someone who was using the same client version as you and see what they are now successfully using)