Your summary card seems to work for me on the web, but the image doesn't show. Checking the image URL
https://www.salesandorders.com/assets/images/google-shopping-management-redefined.png, I expect it to return a PNG in my browser, but it seems to return a web page instead.
Note that you need to click the view summary link in the bottom corner of the Tweet in order to expand the card.
I'm not seeing the card displayed on mobile, which is strange.