Can anyone help please

I am opening my wordpress site and the page display but at the top it gives a warning message saying

Warning: session_start() [function.session-start]: Cannot send session cookie – headers already sent by (output started at /home/rolexman/public_html/sixpackquest/index.php(1) : eval()’d code:37) in /home/rolexman/public_html/sixpackquest/wp-content/plugins/wordpress-automatic-upgrade/wordpress-automatic-upgrade.php on line 121

Warning: session_start() [function.session-start]: Cannot send session cache limiter – headers already sent (output started at /home/rolexman/public_html/sixpackquest/index.php(1) : eval()’d code:37) in /home/rolexman/public_html/sixpackquest/wp-content/plugins/wordpress-automatic-upgrade/wordpress-automatic-upgrade.php on line 121

Can anyone help me out please