Champ 'price' manquant

<?php	
	if(empty($this->variant_name) && !empty($img->origin_url)) {
		if(strpos($img->origin_url, 'http://') === false && strpos($img->origin_url, 'https://') === false) {
			$url = HIKASHOP_LIVE;
			$pieces = parse_url(HIKASHOP_LIVE);
			if(!empty($pieces['path']))
				$url = substr(HIKASHOP_LIVE,0,strrpos(HIKASHOP_LIVE,$pieces['path']));
			$img->origin_url = $url.$img->origin_url;
		}
?>
		<meta itemprop="image" content="<?php echo $img->origin_url; ?>"/>
<?php
	}
}
?>

<!-- PRICE -->
<?php
	$itemprop_offer = '';
	if (!empty($this->element->prices))
		$itemprop_offer = 'itemprop="offers" itemscope itemtype="https://schema.org/Offer"';
?>
		<span id="hikashop_product_price_main" class="hikashop_product_price_main" <?php echo $itemprop_offer; ?>>
<?php
	$main =& $this->element;
	if(!empty($this->element->main))
		$main =& $this->element->main;
	if(!empty($main->product_condition) && !empty($this->element->prices)) {
?>
			<meta itemprop="itemCondition" itemtype="https://schema.org/OfferItemCondition" content="https://schema.org/<?php echo $main->product_condition; ?>" />
<?php
	}
	if($this->params->get('show_price') && (empty($this->displayVariants['prices']) || $this->params->get('characteristic_display') != 'list')) {
		$this->row =& $this->element;
		$this->setLayout('listing_price');
		echo $this->loadTemplate();
		if (!empty($this->element->prices)) {
?>
			<meta itemprop="price" content="<?php echo $this->itemprop_price; ?>" />
			<meta itemprop="availability" content="https://schema.org/<?php echo ($this->row->product_quantity != 0) ? 'InStock' : 'OutOfstock' ;?>" />
			<meta itemprop="priceCurrency" content="<?php echo $this->currency->currency_code; ?>" />                                               
<?php	}
	}
?>		</span>
<!-- EO PRICE -->