Sharing my home page logo

Hi:
when someone is trying to share my website JFBshare automatically includes in the message my website LOGO, which is great. But instead of using the right size of my logo, it rather a much bigger size and as a consequence, the logo does not fit in. (Please see attached). what I have noticed is that the size that JFB is sharing the one I used to have, and it have too big. the current size that I have on the website is 157px x 42 px, which should fit the sharing input box. How Can I force JFB to share the image with 157px x 42?

Regards

Well, I am still a bit confused.
I followed your advice and include in a html module on my home page the following: {SCOpenGraph image=https://www.karipe.com/images/karipe_logo_600x600.png}
but then, instead of scraping the logo, it is now scraping another picture that have nothing to do with the logo. Please see the attached image. I then searched the internet to look for a fix and following the advice of a blog I come over, I put the following in the head: <meta property="og:image" content="www.karipe.com/images/karipe_logo_600x600.png"/>
and still, when I hit the share button, JFB does not get the right picture to share.
Do you have an idea of what may be going wrong here?
Cordially

Thank you, My issue is solved