그누보드5 사이트 맵을 구글 서치 콘솔에 등록했는데 에러가 뜹니다.

어떻게 해결하나요?
사이트맵 php에 사용된 코드
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 "\n";
?>
" target="_blank" rel="noopener noreferrer">https://www.sitemaps.org/schemas/sitemap/0.9/">
\n";
echo "$url/bbs/board.php?bo_table=$bo\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\n";
echo "daily\n";
echo "0.9\n";
echo "\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($query)) {
// list of each article
echo "";
echo "$url/bbs/board.php?bo_table=$bo&wr_id={$row['wr_id']}";
$temp = sql_fetch("select wr_datetime from `{$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";
echo "weekly";
echo "0.5";
echo "\n";
}
$i++;
}
?>