facebook image not working, tried everything

Hi there,

I feel like I have just read all of these posts about facebook images not working, but still can’t figure out how to fix mine.

I have the facebook user ID all fine, i’m using the correct number and everything.

However, it still goes to a photo from my widget in my sidebar, not the featured image. The featured image is large, so I don’t know why it wouldn’t work. So there are two problems:

1) it’s not picking up my feature image

2) it’s not going to the correct default image

Here is the post: https://permaculturemag.org/2016/03/neurodiversity-in-permaculture/

Default image that isn’t working is: https://permaculturemag.org/wp-content/uploads/2016/03/cover.png

https://permaculturemag.org/2016/03/why-im-giving-cornish-cross-a-chance/ this post works image wise, but it has weird text tags in the title that I don’t know where they are coming from!

Can you please help me?

https://wordpress.org/plugins/wp-facebook-open-graph-protocol/