WP Open Graph Meta is a free wordpress plugin to add Facebook Open Graph Meta Elements to blog posts/pages to avoid no thumbnail, wrong title/description issue.
Compatible with wpSEO and All in One SEO Pack.
To install WP Open Graph Meta
Login to wordpress (wp-admin).
In your admin dashboard click plugins and select Add New.
Type WP Open Graph Meta in the search field and click Search Plugins button.
Install WP Open Graph Meta.
After the successfully Installation click the activate Plugin link to activate the plugin.
Download WP Open Graph Meta wordpress plugin. Download link
Unzip and upload it to your WordPress wp-content/plugins directory.
Login to wp-admin. In your admin dashboard click plugins and activate the WP Open Graph Meta wordpress plugin