Facebook post images

Hello.

I instaled the plugin to avoid having small Facebook images.

Things started allright, once I added a link to Facebook instead of three thumbnails to choose from I only got one, and the preview showed a large image as everybody want.

But once I scheduled a post and it got published, I got the same small image I always get, despite what the preview showed.

This happened to a new post never before shared on Facebook, so it should not have cache problems.

While I can manually chosse a big image when I post directly and not scheduling, I need a big image to appear anytime any person shares a link.

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