If you notice that the Facebook Like Count does not increase on a page where a LinksAlpha.com provided widget has been added, you should first add link to your page on the following page and check for errors:
If the Facebook Lint tool does in fact show an error, which is similar to:
It means Facebook Open Graph meta tags are getting added twice to your pages. Once via the LinksAlpha.com plugin and second time via some other plugin you might be using. If you know the other plugin that is adding the Facebook Open Graph Metatags to your pages, you should disable it. If you are unsure, navigate to the Social Discussions plugin Settings page, and uncheck the option under Facebook Options that says - "Check this box if you want Facebook OpenGraph metatags to be added to your pages..." and save the changes.