ss 309 краткое описание продукта в модальном окне Есть решение

Здравствуйте дорогие товарищи, сразу перейду к вопросу, ссылка на сайт, проблема в том что при открытии модального окна, краткое описание продукта берется с первого продукта и предается всем остальным продуктам, я понимаю CMS старая - ss 309, но мне нужна именно она. Может быть, кто то может подсказать решение.

ссылка на виде

это мой product_brief.html

{* product brief view (from a category or search) *}
{if $product_info ne NULL}
{if $product_info.slug}
{assign var=_product_url value="?ukey=product&productID=`$product_info.productID`&product_slug=`$product_info.slug`"|set_query_html}
{else}
{assign var=_product_url value="?ukey=product&productID=`$product_info.productID`"|set_query_html}
{/if}
{if $widget}{assign var=_form_action_url value="&view=noframe&external=1"}{/if}
<!-- start product_brief.html -->
<div class="custom-card gallery-item">

<form class="product_brief_block" action='{"?ukey=cart`$_form_action_url`"|set_query_html}' method="post" rel="{$product_info.productID}" {if $widget}target="_blank"{/if}>
	<input name="action" value="add_product" type="hidden">
	<input name="productID" value="{$product_info.productID}" type="hidden">
	<input class="product_price" value="{$product_info.PriceWithOutUnit|escape:'html'}" type="hidden">
	{assign var=_cnt value=''}
	
	{if $product_info.thumbnail || $product_info.picture}
	<div class="prdbrief_thumbnail card-img-box">
				<!-- Thumbnail -->
				<a {$target} href='{$_product_url}'>
    {if $product_info.thumbnail}
					<img class="card-img" src="{$smarty.const.URL_PRODUCTS_PICTURES}/{$product_info.thumbnail|escape:'url'}" alt="{$product_info.name|escape:'html'}" title="{$product_info.name|escape:'html'}">

					{elseif $product_info.picture}

					<img class="card-img" src="{$smarty.const.URL_PRODUCTS_PICTURES}/{$product_info.picture|escape:'url'}" alt="{$product_info.name|escape:'html'}" title="{$product_info.name|escape:'html'}">
{/if}		
</a>
</div>

{/if}
<div class="product-content card-body card-content">	

	{if $product_info.brief_description}

<!-- Button trigger modal -->
<button type="button" class="btn-outline-primary info_btn" data-toggle="modal" data-target="#exampleModalCenter">
<i class="fas fa-info-circle"></i>	  
</button>
	
<!-- Modal -->
<div class="modal fade" id="exampleModalCenter" tabindex="-1" role="dialog" aria-labelledby="exampleModalCenterTitle" aria-hidden="true">
<div class="modal-dialog modal-dialog-centered" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLongTitle">Краткое описание продукта</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">&times;</span>
</button>
</div>
<div class="modal-body">
<span class="prdbrief_brief_description">{$product_info.brief_description}</span>
</div>
<div class="modal-footer">
</div>
</div>
</div>
</div>
{/if}

	<!--{if $currencies_count ne 0 && $product_info.Price > 0}
	<div class="prdbrief_price mx-auto price">
		<span class="totalPrice">{$product_info.PriceWithUnit}</span>
	</div>
	{/if}-->
	
{if $product_info.ordering_available && $product_info.Price>0 && ( $smarty.const.CONF_SHOW_ADD2CART eq 1 ) && ( $smarty.const.CONF_CHECKSTOCK==0 || $product_info.in_stock > 0 ) }
	<div class="prdbrief_add2cart mx-auto">

			<input type="hidden" name="add2cart">
			<a href=""{if $smarty.const.CONF_SHOPPING_CART_VIEW ne $smarty.const.SHCART_VIEW_PAGE } class="add2cart_handler" rel="{if $widget}widget{/if}" {/if} onclick="getFormByElem(this).submit(); return false;"><button class="btn btn-outline-primary add_1"> <span><i class="fa fa-cart-plus" aria-hidden="true"></i>&nbsp;&nbsp;{lbl_btn_add2cart}</span></button></a>
		<!--	
		<input   {if ($PAGE_VIEW eq 'facebook')||($PAGE_VIEW eq 'vkontakte')}type="submit" value="{"str_add_to_cart_string"|transcape}" {else}type="image" src="{$button_add2cart_small}" alt="{'str_add_to_cart_string'|translate}"{/if} title="{"str_add_to_cart_string"|translate}"
		{if $smarty.const.CONF_SHOPPING_CART_VIEW ne $smarty.const.SHCART_VIEW_PAGE && !$widget} class="add2cart_handler" rel="{if $widget}widget{/if}" {/if}>
	    -->
	</div>
{elseif $smarty.const.CONF_SHOW_ADD2CART eq 1 && $smarty.const.CONF_CHECKSTOCK && !$product_info.in_stock && $product_info.ordering_available}
	<div class="prd_out_of_stock mx-auto">{lbl_prd_out_of_stock}</div>
{/if}
	

{if $smarty.const.CONF_VOTING_FOR_PRODUCTS eq 'True'}
{if $PAGE_VIEW ne 'mobile' && $product_info.customer_votes > 0} {* rating *}
	<div class="sm-current-rating1 mx-auto">
		<div class="sm-current-rating1-back"><i class="fas fa-star"></i></div>
		<div class="sm-current-rating1-front" style="width: {$product_info.customers_rating*13}px;"><i class="fas fa-star"></i></div>
	</div>
{/if}
{/if}

	{if $PAGE_VIEW ne 'mobile' && ($PAGE_VIEW ne 'vkontakte') && ($PAGE_VIEW ne 'facebook') && $product_info.allow_products_comparison && $show_comparison}  {* removed ' && $categoryID == $product_info.categoryID' *}
	<div class="prdbrief_comparison mx-auto">
		<input id="ctrl-prd-cmp-{$product_info.productID}" class="checknomarging ctrl_products_cmp" type="checkbox" value='{$product_info.productID}'>
		<label for="ctrl-prd-cmp-{$product_info.productID}">{"prd_select_to_comparison"|translate}</label>
	</div>
	{/if}
	<span class="all-deals"><a href=""><i class="fab fa-facebook-square soc_card"> </i> </a><span><a href=""><i class="fab fa-vk soc_card"> </i> </a> </span><span> <a href=""><i class="fab fa-instagram soc_card"> </i> </a>   </span></span>

</div>	

</form>

<!-- end product_brief.html -->
</div>
{if $currencies_count ne 0 && $product_info.Price > 0}
	<div class="prdbrief_price mx-auto price">
		<span class="totalPrice">{$product_info.PriceWithUnit}</span>
	</div>
{/if}
		<div class="prdbrief_name card-title title text-center">
			<a {$target} href='{$_product_url}'>{$product_info.name|escape:'html'}</a>
			{* product code (SKU) *}
	{if $product_info.product_code && $smarty.const.CONF_ENABLE_PRODUCT_SKU}
			<br><i>{$product_info.product_code|escape:'html'}</i>
	{/if}
</div>
{/if}