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Warning: Cannot send session cache limiter - headers already sent (output started at /home/sbcmon/public_html/cacti/include/config.php:47) in /home/sbcmon/public_html/cacti/include/auth.php on line 30
Warning: Cannot add header information - headers already sent by (output started at /home/sbcmon/public_html/cacti/include/config.php:47) in /home/sbcmon/public_html/cacti/auth_login.php on line 87
You are getting this error because there is whitespace somewhere in your config.php file. Open up this file edit out any space before the first <? and after the last ?> of the page. Your error specifically is complaining about line 47, but I cannot see why there would be whitespace on that line unless you added a print statement or something.
It's also possible that you are experiencing a unix->dos conversion problem. Have you moved your source from unix to dos (or dos to unix) lately?