Authentication error while fetching yahoo contacts using contacts gem in rails application

I am using contacts gem in my rails 3 application. In case of yahoo contacts it is acting weirdly . It is working fine on local machine but on staging server it is giving authentication error . Below is the log for local and staging server for test account :

on local server :

Started POST "/invitations/new_invitations" for 127.0.0.1 at 2011-08-04 15:31:46 +0530 Processing by InvitationsController#new_invitations as JS Parameters: {"utf8"=>"✓", "authenticity_token"=>"TanjgyK36VgohyE/woBmBGYq2DGbPLmts3j+IIG/c1Q=", "provider"=>"yahoo", "email"=>"testvin27@yahoo.in", "pass"=>"123456", "commit"=>"Import your address book"}

User Load (0.4ms) SELECT users.* FROM users WHERE (users.id = 316) LIMIT 1

Rendered invitations/new_invitations.js.erb (1.2ms)

Completed 200 OK in 9594ms (Views: 30.0ms | ActiveRecord: 0.4ms)

on staging server :

Started POST "/invitations/new_invitations" for 14.99.166.38 at 2011-08-04 10:07:34 +0000 Processing by InvitationsController#new_invitations as JS Parameters: {"utf8"=>"✓", "authenticity_token"=>"ibMbauQlR1yN2bOBZotirAtZa28dMpzL/m9jc5XBP8M=", "provider"=>"yahoo", "email"=>"testvin27@yahoo.in", "pass"=>"123456", "commit"=>"Import your address book"}

User Load (0.2ms) SELECT users.* FROM users WHERE (users.id = 130) LIMIT 1

Contacts::AuthenticationError: Username and password do not match>

Rendered invitations/new_invitations.js.erb (0.4ms)

Any about this ki开发者_如何学Gond of behaviour ??