Wp-admin access does not work – http://prntscr.com/ottgr1 and you provided FTP access to an empty directory http://prntscr.com/ottgu7
To add an image to the mentioned place on the single product page, you need to copy single-product-content.php file (xstore/woocommerce folder) to your child theme (xstore-child/woocommerce folder), add code of the image here – https://prnt.sc/ottjv6
<div>
<img src="URL_of_image" alt="5-reasons">
</div>
Regards