Using authlogic 2.1.3, and authlogic-oid 1.0.4 I receive the following error as soon as rails hits a controller making a request to an OpenID provider:
I was having the same trouble and I really wanted open-id with authlogic, so I copied an old version of plugin from one of Ryan Bates' railscasts apps.
Here's the link git@github.com:senthilnambi/open-id.git. Install it like normally and you should be fine.