하아...혼자 너무 헤매다가 한번 글올려봅니다.

너무 초보라서 이런 질문 죄송합니다.

최신글에서 유투브 썸네일을 클릭하면 새창이 열리고 거기서 유투브를 실행하고 싶은데

잘 안됩니다.

<section id="portfolio">
    <div class="container">
        <div class="row">
            <div class="col-lg-12 text-center">
                <h2>Lecture</h2>
                <hr class="star-primary">
            </div>
        </div>
        <div class="row">
            <?php
            $bo_table = 'lecture';
            $sql = "SELECT * FROM g5_write_{$bo_table}
                    WHERE wr_is_comment = '0'
                    ORDER BY wr_num
                    LIMIT 0, 6";
            $rst = sql_query($sql);
            $board = array('bo_table' => $bo_table);
            $i = 0;
            while($row = sql_fetch_array($rst)) {
                $row = get_list($row, $board, G5_URL);
                $thumbnail = get_list_thumbnail($bo_table, $row['wr_id'], 900, 650);
            ?>
            <div class="col-sm-4 portfolio-item">
                <a href="#portfolioModal<?php echo $i?>" class="portfolio-link" data-toggle="modal">
                    <div class="caption">
                        <div class="caption-content">
                            <i class="fa fa-search-plus fa-3x"></i>
                        </div>
                    </div>
                    <img src="<?php echo $thumbnail['src']?>" class="img-responsive img-centered" alt="<?php echo $thumbnail['alt']?>">
                </a>
            </div>
            <div class="portfolio-modal modal fade" id="portfolioModal<?php echo $i?>" tabindex="-1" role="dialog" aria-hidden="true" style="z-index:9999">
                <div class="modal-content">
                    <div class="close-modal" data-dismiss="modal">
                        <div class="lr">
                            <div class="rl">
                            </div>
                        </div>
                    </div>
                    <div class="container">
                        <div class="row">
                            <div class="col-lg-8 col-lg-offset-2">
                                <div class="modal-body">
                                    <h2><?php echo $row['subject']?></h2>
                                    <hr class="star-primary">
         <p><iframe width="<?php echo $v_width?>" height="<?php echo $v_height?>" src="<?php echo $view[wr_1]?>?feature=player_embedded" frameborder="0" allowfullscreen></iframe>
                        </p>
                <p><?php echo conv_content($row['wr_content'], 2)?></p>
                                    <ul class="list-inline item-details">
                         
                       <li>글쓴이 :
                                            <strong><?php echo $row['name']?>
                                            </strong>
                                        </li>
                                        <li>날짜 :
                                            <strong><?php echo date('F d, Y', strtotime($row['wr_datetime']))?>
                                            </strong>
                                        </li>
                                        <li>종류 :
                                            <strong><?php echo $row['ca_name']?>
                                            </strong>
                                        </li>
                                    </ul>
                                    <button type="button" class="btn btn-default" data-dismiss="modal"><i class="fa fa-times"></i> Close</button>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
            <?php $i += 1;
            } ?>
        </div>
    </div>
</section>

글쓴이나 제목같은건 유튜브 게시판에서 잘끌어오는데

왜 동영상 재생만 안될까요?

이렇게만 나옵니다.

테마는 https://sir.kr/g5_theme/822?page=2 이것 사용하였습니다.

제발 도와주세요...ㅠㅠ