[devonkrusich]

I installed the script and cron job. Here is the message the cron sent last night. How can I fix this or is this OK?

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<b>Warning</b>: mysql_num_rows(): supplied argument is not a valid MySQL result resource in <b>/home2/petsuppl/public_html/db_optimizer.php</b> on line <b>30</b><br />
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<b>Warning</b>: mysql_num_rows(): supplied argument is not a valid MySQL result resource in <b>/home2/petsuppl/public_html/db_optimizer.php</b> on line <b>30</b><br />