Error: redirect_uri_mismatch

Hi Samuel,

Got an error. Pls. advice.
“Error: redirect_uri_mismatch
The redirect URI in the request: http://www.xxxxx.biz/blog/oauth2callback did not match a registered redirect URI”

Request Details:
scope=https://www.googleapis.com/auth/userinfo.profile https://www.googleapis.com/auth/userinfo.email
response_type=code
redirect_uri=http://www.xxxxx.biz/blog/oauth2callback
access_type=online
state=popup_login
display=page
client_id=906161293476.apps.googleusercontent.com

Thx.

http://wordpress.org/extend/plugins/simple-google-connect/