Thank you.
This is bug. It is fixed and will be on 1.0.2 next week.
Here is the fix:
storefront/controller/blocks/listing_block.php
@@ -290,7 +290,7 @@
}
- if(isset($item['price'])){
+ if(isset($item['price']) && preg_match('/^[0-9\.]/',$item['price'])){
$result[$k]['price'] = $this->currency->format($this->tax->calculate($item['price'], $result['tax_class_id'], $this->config->get('config_tax')));
}
$result[$k]['url'] = $this->html->getSEOURL($data_source['storefront_view_path'],'&'.$data_source['data_type'].'='.$item[$data_source['data_type']]);