Snippet not working right all the time.

<?php
$path = $modx->getOption('gallery.files_url');
     
    $album = $modx->getOption('album', $scriptProperties, false);
    if (!$album) { return ''; }
    if ($modx->getOption('checkForRequestVar',$scriptProperties,true)) {
        $getParam = $modx->getOption('getParam',$scriptProperties,'galItem');
        if (!empty($_REQUEST[$getParam])) { $id = (int)$_REQUEST[$getParam]; }
    }
    if ($id) { return ''; };
     
    $sql = "SELECT item.* FROM modx_gallery_items item
    INNER JOIN modx_gallery_album_items a ON item.id = a.item AND a.rank = 0
    WHERE a.album = :album";
     
    $stmt = $modx->prepare($sql);
    $stmt->execute(array('album'=> $album));
    $row = $stmt->fetch(PDO::FETCH_ASSOC);
    $stmt->closeCursor();
    $row['fullpath'] = $path . "" . $row['filename'];
     
    $modx->toPlaceholders(array('single' => $row));

[[!Gallery? &album=`[[*templatevariableforgallery]]` &toPlaceholder=`gallery`]]
    [[!GalleryItem?]]
     
    [[+galitem.image:notempty=`<div class="image">
     <img class="[[+galitem.imgCls]]" src="[[+galitem.image]]" alt="[[+galitem.name]]" />
    </div>`]]
    [[+galitem:empty=`<div class="image">
    [[!getFirstImage? &album=`[[*templatevariableforgallery]]` ]]
     <img src="[[+single.fullpath]]" alt="[[+single.description]]" />
    </div>`]]
     
     
    <div style="display: block; position: relative; overflow: hidden; margin: auto;">
    [[!+gallery:notempty=`
    [[+gallery]]
    `]]
    </div>
     
    <p> </p>