facebook integration problem

[eluser]Bigil Michael[/eluser]
Now I changed my config like this.

Code:

$config['permitted_uri_chars'] = 'a-z 0-9?~%.:_\-';
$config['enable_query_strings'] = TRUE;

Now Error Removed.
but $fb_data['uid'] is 0. Abybody know why iam getting '0'.

thanks in advance