그누보드5 사이트 맵을 구글 서치 콘솔에 등록했는데 에러가 뜹니다.

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사이트맵 php에 사용된 코드

<?php
// m3 google sitemap ver 1.23 by mahler83 2009-11-16
// please give feedbacks to bomool.net
include_once("./_common.php");

$charset = $g5['charset'];
$url = "http://OOOO.com"; // G5 루트 경로

header("Content-type: text/xml;charset=\"UTF-8\"");
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");

echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
?>
<urlset xmlns="https://www.sitemaps.org/schemas/sitemap/0.9/">
<?php
$query = sql_query("select bo_table from `{$g5['board_table']}` where bo_read_level='1'");
while($temp = sql_fetch_array($query)) {
$bo_arr[] = $temp['bo_table'];
}

$i = 1;
foreach($bo_arr as $bo) {
// list of bo_table
echo "<url>\n";
echo "<loc>$url/bbs/board.php?bo_table=$bo</loc>\n";
$temp = sql_fetch("select wr_datetime from `{$g5['write_prefix']}{$bo}` order by wr_datetime DESC");
$lastmod = str_replace(" ", "T", substr($temp['wr_datetime'], 0, 30))."+00:00";

// if
if(!$lastmod || strlen($lastmod) < 25 || strcmp($lastmod, "+00:00")) $lastmod = "2014-10-10T00:00:00+00:00";

echo "<lastmod>$lastmod</lastmod>\n";
echo "<changefreq>daily</changefreq>\n";
echo "<priority>0.9</priority>\n";
echo "</url>\n";

$query = sql_query("select wr_id, wr_datetime from `{$g5['write_prefix']}{$bo}` where wr_is_comment='0' AND wr_option NOT LIKE '%secret%'");
while($row = sql_fetch_array($query)) {
// list of each article
echo "<url>";
echo "<loc>$url/bbs/board.php?bo_table=$bo&wr_id={$row['wr_id']}</loc>";
$temp = sql_fetch("select wr_datetime from `{$g5['write_prefix']}{$bo}` where wr_parent='{$row['wr_id']}' order by wr_id DESC");
$lastmod = str_replace(" ", "T", substr($temp['wr_datetime'], 0, 30))."+00:00";
if(!$lastmod) {
$temp = sql_fetch("select wr_datetime from `{$g5['write_prefix']}$bo` where wr_id='{$row['wr_id']}'");
$lastmod = str_replace(" ", "T", substr($temp['wr_datetime'], 0, 30))."+00:00";
}
if(!$lastmod) $lastmod = $g5['time_ymd'];
echo "<lastmod>$lastmod</lastmod>";
echo "<changefreq>weekly</changefreq>";
echo "<priority>0.5</priority>";
echo "</url>\n";
}
$i++;
}
?>
</urlset>