PrestaShop 修复Google Structured Data Testing Tool 报错

{if isset($product.show_price) && $product.show_price && !isset($restricted_country_mode)}
    <span itemprop="price" >
    {if !$priceDisplay}{convertPrice price=$product.price}{else}{convertPrice price=$product.price_tax_exc}{/if}
    </span>
    <meta itemprop="priceCurrency" content="{$currency->iso_code}" />
    {if isset($product.specific_prices) && $product.specific_prices && isset($product.specific_prices.reduction) && $product.specific_prices.reduction > 0}
        {hook h="displayProductPriceBlock" product=$product type="old_price"}                   
        <span class="old-price product-price">
        {displayWtPrice p=$product.price_without_reduction}
        </span>
        {if $product.specific_prices.reduction_type == ‘percentage‘}
            <span class="price-percent-reduction">-{$product.specific_prices.reduction * 100}%</span>
        {/if}
    {/if}
    {hook h="displayProductPriceBlock" product=$product type="price"}
    {hook h="displayProductPriceBlock" product=$product type="unit_price"}
{/if}