Removed "authlogic" completely. Let's try "devise".

app/models/user.rb

@@ -1,5 +1,2 @@
 class User < ActiveRecord::Base
-  acts_as_authentic do |c|
-   c.login_field = 'email'
-  end
 end

app/models/user_session.rb

@@ -1,7 +0,0 @@
-# User sessions. Refers to the "User" class automatically (by its name).
-# See also: https://github.com/binarylogic/authlogic
-class UserSession < Authlogic::Session::Base
-  # specify configuration here, such as:
-  # logout_on_timeout true
-  # ...many more options in the documentation
-end