[Plugin: Really simple Facebook Twitter share buttons] Pinterest 'Pin It' button is pickin

I installed the Facebook Like, Twitter, Google+ and Pinterest button but out of all the Pinterest ‘Pin It’ button if i click always picks a wrong thumbnail from the post.

I had the same problem with Facebook Like button but that’s been taken care of using OpenGraph plugin.

Can someone help me with the Pinterest button please.

You can see a sample here:
https://www.teescode.com/rubber-grubber-white/

Help me out!!

Regards,

Jimmy

https://www.ads-software.com/extend/plugins/really-simple-facebook-twitter-share-buttons/