Hello,
Thanks for using our theme.
Lightshot screenshot tool can be used to take screenshots and share them. Or upload your screenshots here – https://dropmefiles.com/ and provide us with the URL via the Private Content area.
Your site under maintenance mode, so we can’t check it. Please provide temporary wp-admin access.
Also, read this article – https://www.8theme.com/documentation/xstore/woocommerce/product-images/
Regards