What do these Autotune Error Check errors mean?

I ran the Autotune Error Check and am getting the following error:

• Test: Facebook Javascript library inclusion Fail: Another Facebook extension is installed, including the Facebook Javascript library, and may conflict. - This error means that another extension, plugin or template on your site is including a Facebook library. Usually, this is Facebook's deprecated all.js Javascript library. That is the 'old' version of the Facebook Javascript API which was discontinued. It's no longer meant to be used and can cause conflicts with some JFBConnect features, as JFBConnect uses the recommended sdk.js library. As more extensions upgrade to using the recommended library, this warning can also mean a second inclusion of sdk.js on the page - more than one inclusion of the sdk.js file can also cause some features to not behave properly. Some common extensions that included Facebook features are JomSocial, EasySocial, K2. You will need to check your plugins, components and/or template for any Facebook features and try to disable them.
• Error Code: 406 - Unknown Error - The full error coming back from Autotune is usually "Not Acceptable! An appropriate representation of the requested resource could not be found on this server. This error was generated by Mod_Security." It seems like mod_security (an Apache firewall addon) is blocking our automated tool from scanning your page. Mod_security, in general, tries to prevent 'bad' requests (malicious, automated, and various other kinds). It may be detecting our tool is automated (not a real browser) and denying it. You'll need to investigate your mod_security logs, or disable it, to let the Autotune tool perform its checks. Additionally, we recommend testing your page with other automated checkers.
• Facebook API Error: (#10) Changing app settings through API calls has been disabled for this app. Go to your app's advanced settings to enable this. Facebook Application configuration could not be loaded. Please check your App ID and Secret Key. - Go into your app on https://developers.facebook.com/ and navigate to Settings > Advanced. If you scroll down on that page, there's an option called "Allow API Access to App Settings" that needs to be enabled to resolve this error. Once it's on, you'll be able to use Autotune in JFBConnect to set up the application.