Facebook sharing wrong feature image

I am using simple sharer button and post shot-code on our blog page see here

http://www.techverx.com/blog/

I have multiple blogs when i click share on any blog facebook pick the latest blog not that one which i click its because og tags.

Also i debug my url with facebook debugger https://developers.facebook.com/tools/debug/ it shows me that, facebook get only that post which is present in og tags.

Any idea how i solve this ?

https://ww.wp.xz.cn/plugins/simple-share-buttons-adder/