We were forced to shutdown TOR on our servers because of continuing attacks on this service.
The attacks could be related to the latest problems TOR is having with someone trying to bring a botnet online: https://blog.torproject.org/blog/ We are experiencing up to one gigabit/s of incoming traffic to our middle nodes. Some datacenters even shut down routing to our servers because they thought it was a DDOS attack. However, the traffic ends the moment we restart the TOR daemon. So this is not someone sending random traffic to the TOR port. There is a new TOR version available as of yesterday, but it is not in the repositories yet, we will update to this version asap as it might fix this problem.