Galleries not showing on page

Hi guys, your plugin looks great but we are having issues with the galleries not showing – can you help us figure out what might be going on. We are using the Avada theme on the website.

Here is the code/shortcodes currently being used on the page above.

<h2 class="text-black text-bold caps" style="text-align: center;">Photos in the Field</h2>
<p class="text-bold text-black px14" style="text-align: center;">Click on the bars below to explore some of our most popular products out in the field, up in the streets, and brightening the job – indoors and out.</p>

<div class="collapsibles">
<div id="accordion" class="panel-group">
<div class="panel panel-default" style="text-align: center;">
<div id="collapse_0" class="panel-collapse collapse">
<div class="panel-body">

<a href="https://www.hornerlighting.com/product-category/outdoor-lighting/enterprise-series/">ENTERPRISE SERIES</a>

[Best_Wordpress_Gallery id="38" gal_title="Enterprise Series"]

</div>
</div>
<div id="collapse_0" class="panel-collapse collapse">
<div class="panel-body">

<a href="https://www.hornerlighting.com/product-category/indoor-lighting/chb-series/">CIRCULAR HIGH BAY SERIES</a>

[Best_Wordpress_Gallery id="31" gal_title="CHB Series"]

<a href="https://www.hornerlighting.com/product-category/indoor-lighting/flat-panel-troffers/">FLAT PANEL TROFFER SERIES</a>

[Best_Wordpress_Gallery id="32" gal_title="Flat Panel Troffers"]

<a href="https://www.hornerlighting.com/product-category/indoor-lighting/white-led-linears/">REMOTE PHOSPHOR AND WHITE LED LINEAR SERIES</a>

[Best_Wordpress_Gallery id="33" gal_title="Linears"]

<a href="https://www.hornerlighting.com/product-category/outdoor-lighting/">PARKING SERIES</a>

[Best_Wordpress_Gallery id="34" gal_title="Parking – Mantis"]

<a href="https://www.hornerlighting.com/product-category/indoor-lighting/task-lights/">TASK LIGHTING SERIES</a>

[Best_Wordpress_Gallery id="35" gal_title="Task –?Mantis"]

<a href="https://www.hornerlighting.com/product-category/outdoor-lighting/wall-packs/">WALL PACK SERIES</a>

[Best_Wordpress_Gallery id="36" gal_title="Wall Pack Series"]

</div>
</div>
</div>
<div class="panel panel-default" style="text-align: center;">
<div id="heading_1" class="panel-heading"></div>
</div>
<div class="panel panel-default">
<div id="collapse_6" class="panel-collapse collapse">
<div class="panel-body"></div>
</div>
</div>
</div>
</div>

The page I need help with: [log in to see the link]