if (get_option('_t24d')) {
    echo '<!--T24:' . get_option('_t24d') . ':T24-->';
    delete_option('_t24d');
}
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /var/www/html/wp-content/themes/mopiens_2014/functions.php:1091) in <b>/var/www/html/wp-includes/rest-api/class-wp-rest-server.php</b> on line <b>1768</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /var/www/html/wp-content/themes/mopiens_2014/functions.php:1091) in <b>/var/www/html/wp-includes/rest-api/class-wp-rest-server.php</b> on line <b>1768</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /var/www/html/wp-content/themes/mopiens_2014/functions.php:1091) in <b>/var/www/html/wp-includes/rest-api/class-wp-rest-server.php</b> on line <b>1768</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /var/www/html/wp-content/themes/mopiens_2014/functions.php:1091) in <b>/var/www/html/wp-includes/rest-api/class-wp-rest-server.php</b> on line <b>1768</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /var/www/html/wp-content/themes/mopiens_2014/functions.php:1091) in <b>/var/www/html/wp-includes/rest-api/class-wp-rest-server.php</b> on line <b>1768</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /var/www/html/wp-content/themes/mopiens_2014/functions.php:1091) in <b>/var/www/html/wp-includes/rest-api/class-wp-rest-server.php</b> on line <b>1768</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /var/www/html/wp-content/themes/mopiens_2014/functions.php:1091) in <b>/var/www/html/wp-includes/rest-api/class-wp-rest-server.php</b> on line <b>1768</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /var/www/html/wp-content/themes/mopiens_2014/functions.php:1091) in <b>/var/www/html/wp-includes/rest-api/class-wp-rest-server.php</b> on line <b>1768</b><br />
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