You are using  of disk space to store QSL Card assets.
    
    result())) {
        echo '
        
        
        | Callsign | 
        QSL | 
         | 
         | 
        
        ';
        foreach ($qslarray->result() as $qsl) {
            echo '';
            echo '| ' . $qsl->COL_CALL . ' | ';
            echo '' . $qsl->filename . ' | ';
            echo ' | ';
            echo ' | ';
            echo '
';
        }
        echo '
';
    }
    ?>