Hello,
I am currently trying to figure out how to migrate the Facebook API to the latest version because the version currently used by this plugin is going to be discontinued by Facebook. Facebook updates are unfortunately going to stop working for everyone around April 30 2015 until I am able to release an update with the new API version (hopefully soon, since I also use this plugin and need it to work with Facebook).
It’s a little bit complicated to do the upgrade because the newer version of the Facebook API requires authentication, so I am trying to make it as easy as possible for everyone using the plugin to not have to sign in or create an App ID on Facebook.
If you or anyone else finding this post can help with the plugin development, please send me an email or take a look at one of the links below to help me with the development:
https://github.com/chapmanu/wp-social-metrics-tracker/issues/60
http://stackoverflow.com/questions/29680762/migrating-facebook-api-for-url-share-count-from-v1-0-to-v2-0/
Hello again, please try updating the plugin to version 1.5.0 and see if Facebook is able to collect data. I have changed the way that the Facebook data is collected in this version.
There is also now a page under
Social Metrics > Configuration > API Connection Settings
Which will let you pick between two different ways to retrieve data from Facebook. Let me know if this fixes the issue or not.