What is "fb:app_id" The "fb:app_id" property is a required meta tag for Facebook's Open Graph protocol. It is used to specify the unique identifier of the app that is associated with the website. This information is used by Facebook to understand the context of the website and how to display it on the platform. If this property is missing, Facebook may not be able to properly scrape the website and may display incorrect information. To fix this issue, you will need to add the "fb:app_id" property to the website's meta tags and include the correct app ID associated with your website. You can find more information about the Open Graph protocol and how to implement it on the Facebook Developers website. steps to add How to add the "fb:app_id" To add the "fb:app_id" property to your website, you will need to create a Facebook App and then add its App ID to your website's meta tags. Here are the steps to do this: Go to the Face...