I am no longer using this plugin-
see my twitter archive managed by Thinkup – http://thinkup.cogdogblog.com/
And that too changed. Thinkup has matured, but at the time it was using a lot of local resources, and I never looked at it. My current tool is the Sync Twitter Archive With Google Drive by Martin Hawksey now (until some future cross-out) at http://tweets.cogdogblog.com/, That Martin, he is a GENIUS!