Twitter Opengraph not working

Hello guys.
My issue is that the card image doesn’t appear upon sharing any of my pages on Twitter. I did set the Opengraph image in the plugin settings, I did enter the correct dimensions, and I did clear the cache. Twitter’s card validator says that everything is fine but the picture itself doesn’t appear. Anything I can do on my side?

The page I need help with: [log in to see the link]