I suspect there’s supposed to be a gallery or animation there. That’s not happening because a JavaScript error occurs when the page is loaded. This prevents other scripts from running, and apparently also prevents this image from displaying.
First, I’d recommend temporarily disabling the WP Rocket caching plugin to see if that helps. If it works after that, I’d suggest contacting their support team for clarification: https://wp-rocket.me/support/
Thank you both. I will let you know how I get on.
Thank you
The issue has resolved itself