메인에 상품리뷰를 설치했는데, 오류가 납니다.

​<?phpif (!defined("_GNUBOARD_")) exit; // 개별 페이지 접근 불가add_stylesheet('<link rel="stylesheet" href="'.G5_SHOP_SKIN_URL.'/style.css">', 0);$sql = "  select * from `{$g5['g5_shop_item_use_table']}` a join `{$g5['g5_shop_item_table']}` b on (a.it_id=b.it_id) where a.is_confirm = '1' order by a.is_id desc limit 0, 10 ";$result = sql_query($sql);?><div id="sps">    <?php    $thumbnail_width = 995;    for ($i=0; $row=sql_fetch_array($result); $i++)    {        $star = get_star($row['is_score']);        $is_content = get_view_thumbnail($row['is_content'], $thumbnail_width);        $row2 = sql_fetch(" select it_name from {$g5['g5_shop_item_table']} where it_id = '{$row['it_id']}' ");        $it_href = G5_SHOP_URL."/item.php?it_id={$row['it_id']}";        if ($i == 0) echo '<ul>';    ?>        <li>        <div class="sps_img">            <a href="<?php echo $it_href; ?>">                <?php echo get_itemuselist_thumbnail($row['it_id'], $row['is_content'], 70, 70); ?>                <span><?php echo $row2['it_name']; ?></span>            </a>        </div>        <section class="sps_section">            <h2><?php echo $row['is_subject']; ?></h2>            <dl class="sps_dl">                <dt>작성자</dt>                <dd><?php echo $row['is_name']; ?></dd>                <dt>작성일</dt>                <dd><?php echo substr($row['is_time'],0,10); ?></dd>                <dt>평가점수</dt>                <dd><img src="<?php echo G5_URL; ?>/shop/img/s_star<?php echo $star; ?>.png" alt="별<?php echo $star; ?>개"></dd>            </dl>            <div id="sps_con_<?php echo $i; ?>" style="display:none;">                <?php echo $is_content; // 사용후기 내용 ?>            </div>            <div class="sps_con_btn"><button class="sps_con_<?php echo $i; ?>">보기</button></div>        </section>    </li>    <?php }    if ($i > 0) echo '</ul>';    if ($i == 0) echo '<p id="sps_empty">자료가 없습니다.</p>';    ?></div><script src="<?php echo G5_JS_URL; ?>/viewimageresize.js"></script><script>$(function(){    // 사용후기 더보기    $(".sps_con_btn button").click(function(){        var $con = $(this).parent().prev();        if($con.is(":visible")) {            $con.slideUp();            $(this).text("보기");        } else {            $(".sps_con_btn button").text("보기");            $("div[id^=sps_con]:visible").hide();            $con.slideDown(                function() {                    // 이미지 리사이즈                    $con.viewimageresize2();                }            );            $(this).text("닫기");        }    });});</script>