When logging in to www.linnecards.com, the following error is received after entering username & password:

Warning: session_regenerate_id() [function.session-regenerate-id]: Cannot regenerate session id - headers already sent in /home/linnecar/public_html/includes/functions/sessions.php on line 162

This is line #162 in the sessions.php file:

session_regenerate_id();


Any ideas for resolving this error? Thanks in advance.