Problema com cron

[morelly]

Pessoal, alguém poderia me auxiliar, já estou quase careca, pois não consegui descobrir o erro abaixo.

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<b>Warning</b>: session_start() [<a href='function.session-start'>function.session-start</a>]: Cannot send session cookie - headers already sent in <b>/home/lance/public_html/config/config.inc.php</b> on line <b>2</b><br />

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<b>Warning</b>: session_start() [<a href='function.session-start'>function.session-start</a>]: Cannot send session cache limiter - headers already sent (output started at /home/lance/public_html/config/config.inc.php:2) in <b>/home/lance/public_html/config/config.inc.php</b> on line <b>2</b><br />

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<b>Warning</b>: exec() has been disabled for security reasons in <b>/home/lance/public_html/checkupdate.php</b> on line <b>85</b><br />

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<b>Warning</b>: exec() has been disabled for security reasons in <b>/home/lance/public_html/checkupdate.php</b> on line <b>91</b><br />

Use getpath.php

$output1 = exec("php -q /home/lance/public_html/update_butler.php >/dev/null &");

$output = exec("php -q /home/lance/public_html/update_records.php >/dev/null &");

[ESerra]

O erro: Cannot send session cookie - headers already sent

Você está tentando iniciar a sessão depois de enviar algo para o navegador.

O erro: exec() has been disabled for security reasons

A mensagem é auto-explicativa.