Facebook has a new setup that requires each user to create an APP ID to display correctly on your website. Please continue reading below for more information on how to set this up.
How To Create A Facebook APP ID
Step 1 - Go to this link, and log in with your Facebook credentials.
Step 2 - Click the Register button, and accept Facebook's Terms and Conditions.
Step 3 - You will then be asked to Add a New App. Select Website from the list.
Step 4 - In the upper right corner, click the Skip and Create App ID button.
Step 5 - Fill in the required fields and choose a category. Once you're done, click the Create App ID button.
Step 6 - Once you click the Create App ID button, you will be asked to enter a captcha. After answering the captcha, click the Submit button.
Step 7 - You will be redirected to the app's dashboard. Here you will find your App ID, and your App Secret Key.