<div class="text-center">
    <div class="mt-3 h5">You have no access to this page.</div>
    <div>
        <small>go to <a href="<?= htmlspecialchars($app_root) ?>">front page</a> or to <a href="<?= htmlspecialchars($app_root) ?>?page=profile">your profile</a></small>
    </div>
</div>