It seems that our tracker, hosted by Weedy, has been down for a week or more. We hope it'll be back online soon. In the meantime, try searching for torrents on TokyoTosho(.info) and the usual Nyaa clone websites. Batch torrents are still up on the (now-private) BakaBT.
Edit 2018-01-05: Weedy reports that this was due to hardware malfunction. Tracker's back up as of today.