Recieving error message in admin section

[Guest]

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/quinlon/public_html/shop/admin/includes/database_tables.php:65) in /home/quinlon/public_html/shop/admin/includes/functions/sessions.php on line 67

[nvedia]

Search the forums, thats a common error

Probably you have some whitespace before <? or after ?>

in sessions.php