Facebook does not show picture when I share link Home

Hello,
When I share my link to Facebook homepage http://www.avivaweb.com no picture. This I only happens in the home, elsewhere working properly.
I have activated the plugin System - GK Open Graph Article Parameters but does not solve anything.
What should I do to choose the image and text I want to show when I share my homepage?
Thank You!

Hello,

The open graph metatags from the GK Open Graph plugin are working only with the com_content articles. You can try:

1) Replace facebook.php content with the default.php file content and then recheck the results (please remember to use the open graph debugging tools: https://www.gavick.com/blog/controlling ... open-graph )

2) Use 3rd party plugin for Open Graph.

hello again,
The plugin you say is for WordPress, work with Joomla. I installed a plugin that I think it's the same, it is called Perfect Link With Article Images on Facebook available in the JED, but still not working.

Sorry but I've no idea how I can help you more - this functionality is not a part of our template.

Hello, I understand you do not have support from an external component.
I tried unsuccessfully your directions.
Would you please as I can solve the problem with Open Graph plugin included in your template designed to show image and text on Facebook?
Thanks again,

Our Open Graph plugin works only with the com_content articles so it is not related to your issue.