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Warning message indicating that header information cannot be modified because output has already commenced. The issue originates from a PHP script located in `/home2/mobiletv/public_html/mrs-claassen.co.za/lib.php` at line 21. This warning often occurs when attempting to set HTTP headers after content has begun to be sent to the browser, which can disrupt proper functioning of header-related functions, such as redirects or setting cookies.
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<br /> <b>Warning</b>: Cannot modify header information - headers already sent by (output started at /home2/mobiletv/public_html/mrs-claassen.co.za/lib.php:1) in <b>/home2/mobiletv/public_html/mrs-claassen.co.za/lib.php</b> on line <b>21</b><br />