ワードプレスのサイトでPHPエラーが出てしまします。

ワードプレスのサイトでPHPエラーが出てしまします。
エラー内容です。

Parse error: syntax error, unexpected 'tag' (T_STRING), expecting variable (T_VARIABLE) or '$' in /virtual/S10176720000001/public_html/wp-content/themes/aees-gym.com/functions/blade/storage/views/8974a88ce7f95c6c251df38220642d94 on line 60

どの部分がおかしいかお分かりであれば教えていただきたいです。
※ちなみに60行目は下記「<<?=$ tag ?> class="title">」の部分です。

<!DOCTYPE HTML> <html lang="ja" prefix="og: http://ogp.me/ns#"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title> <?php wp_title(); ?> </title> <?php wp_head(); $template_url = get_bloginfo('template_url'); $timestamp = time(); ?> <link rel="stylesheet" href="<?= $template_url ?>/assets/css/main.css?<?= $timestamp ?>"> <script src="<?= $template_url ?>/assets/js/vendor/respond.min.js"></script> <?php if(is_page('contact')) : ?> <script> document.addEventListener('wpcf7mailsent', function(event) { location = '//<?= $_SERVER[' HTTP_HOST '] ?>/thanks'; }, false);

    </script>
    <?php elseif(is_page('thanks')) : ?>
    <meta name="robots" content="noindex">
    <?php endif; ?>
    <?php

if(!is_front_page()){
breadcrumbLists_org();
}
businessType_org();
?>

        <script src="https://isysh.check-up-on.com/system/js/twh/1791/32fc79916c18dec2668f80d0470d5a0e/"></script>
        <link rel="shortcut icon" href="/wp-content/uploads/favicon.ico" />
        <link rel="apple-touch-icon-precomposed" href="/wp-content/uploads/icon-152x152.png" />

</head> <body class="scrollTop<?php echo (is_front_page())? ' home': '' ?>">

<div id="fb-root"></div>
<script>
    (function(d, s, id) {
        var js, fjs = d.getElementsByTagName(s)[0];
        if (d.getElementById(id)) return;
        js = d.createElement(s);
        js.id = id;
        js.src = "//connect.facebook.net/ja_JP/sdk.js#xfbml=1&version=v2.9";
        fjs.parentNode.insertBefore(js, fjs);
    }(document, 'script', 'facebook-jssdk'));

</script>

<header>
    <div class="primary_header">
        <div class="row">
            <?php $tag = (is_front_page())? 'h1': 'div' ?>
            <<?=$ tag ?> class="title">
                <?php $header_image = get_header_image();
      if ( ! empty( $header_image ) ) : ?>
                <a href="<?= home_url('/') ?>">
          <object type="image/svg+xml" data="<?= $header_image ?>" alt="<?= bloginfo('name') ?>"></object>
        </a>
                <div class="h_info">
                    <p class="tel"><span>06-4708-5166</span></p>
                    <p>〒541-0046　大阪市中央区平野町2-5-12<br>みすや21ビル 3F</p>
                </div>
                <div class="sp_header_tel sp-only">
                    <a href="tel:06-4708-5166">06-4708-5166</a>
                </div>
                <div class="h_info2">
                    <p><a class="button" href="http://airrsv.net/aees-gym/calendar" target="_blank">ネット予約はこちら</a></p>
                </div>
                <div class="h_info3">
                    <p>
                        <img src="/wp-content/uploads/header_copy001.png" alt="業界最安値に挑戦するプライベートパーソナルジム">
                    </p>
                </div>
                <div class="h_info4">
                    <p>大阪市中央区平野町2-5-12 みすや21ビル 3F</p>
                </div>
                <?php endif;?>
            </<?=$ tag ?>>
            <?php
      $search = get_search_form(false);
      $defaults = array(
        'theme_location'  => 'header',
        'menu'            => '',
        'container'       => 'nav',
        'container_class' => 'global_nav',
        'container_id'    => '',
        'menu_class'      => '',
        'menu_id'         => '',
        'echo'            => true,
        'fallback_cb'     => 'wp_page_menu',
        'before'          => '',
        'after'           => '',
        'link_before'     => '',
        'link_after'      => '',
        'items_wrap'      => '<ul>%3$s
        </ul>
        <div class="menu_icon">
          <a href="#menu"><span>メニュー開閉</span></a>
        </div>',
        'depth'           => 0,
        'walker'          => ''
      );
      wp_nav_menu( $defaults );
    ?>
        </div>
    </div>
</header>