There could be one the following reasons that your Facebook feed may not work:

1. Make sure that you have set up your Facebook API Credentials correctly. Read this topic for details about Facebook API Credentials configuration.
2. Your Facebook page ID or Album ID is incorrect. Read this topic on how to find your Facebook IDs.
3. You are using a Facebook profile ID instead of a page ID. Facebook do not provide feed data for personal profiles.
4. Your Facebook settings restrict the user that may view your page. You have to remove any age/profanity restrictions from your Facebook page.

1. Make sure that you have set up your Twitter API Credentials correctly. Read this topic for details about Twitter API Credentials configuration.
2. If your Twitter API credentials is valid, this may be due to the Twitter API limits that is 180 calls per 15 minutes.

There could be one the following reasons that your Google+ feed may not work:

1. Your Google page/profile ID or Username is incorrect. Read this topic on how to find your Google+ IDs.
2. Your Google settings restrict the user that may view your page. You have to remove any Target Audience restrictions from your Google+ page/profile.
3. Make sure that you have set up your Google+ API Key and it is valid. Read this topic to find that how to set Google+ API Key.

1. Instagram Username is incorrect.
2. Make sure that you have set up your API Access Token and it is valid. Read this topic to find that how to set Instagram API Access Token.

You need to purchase one license for each site you want to use PHP Social Stream on.
1 site = 1 license, 2 sites = 2 licenses, 3 sites = 3 licenses and so on.
It doesn’t matter if they are all in use by the same company, on the same server, by the same developer, etc. The license terms are single use – one license per site.

Currently, the only option is to purchase an individual Regular License for each site on which PHP Social Stream will be used.
The CodeCanyon standard (Regular/Extended) licenses both are only for individual (single) usage. The only difference is about to charge or not to charge the end customer.
We can not also provide you with a developer/multi-use license directly as we have an exclusivity agreement with CodeCanyon that means, we can only distribute our products through them.
At this time, for every website that you have PHP Social Stream activated on, you need to purchase an individual Regular or Extended License. 1 site = 1 license, 2 sites = 2 licenses, 3 sites = 3 licenses, etc.

For more information please read this article: http://codecanyon.net/licenses/faq