Just install my bb : Adminstration section problem

// Collect some additional info about MySQL
if ($db_type == 'mysql' || $db_type == 'mysqli')
{
    $db_version = 'MySQL '.$db_version;

    // Calculate total db size/row count
    $result = $db->query('SHOW TABLE STATUS FROM `'.$db_name.'`') or error('Unable to fetch table status', __FILE__, __LINE__, $db->error());

    $total_records = $total_size = 0;
    while ($status = $db->fetch_assoc($result))
    {
        $total_records += $status['Rows'];
        $total_size += $status['Data_length'] + $status['Index_length'];
    }

    $total_size = $total_size / 1024;

    if ($total_size > 1024)
        $total_size = round($total_size / 1024, 2).' MB';
    else
        $total_size = round($total_size, 2).' KB';
}