Proxy Error
When you see the following Message,:
Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request GET /perl-bin/animedb.pl. Reason: Could not connect to remote machine: Connection refused
when trying to reach AniDB don't panic! Whenever some updates to anidb get uploaded it will reply with that error for a couple of minutes/hours, depending on the size of the update.