New Post: Facebook box disappeared

From the source code of your page, I can assume that you are using these two packages:

1. Composite.Media.NivoSlider
2. Composite.Community.Facebook.LikeBox
   

The latest version of NivoSlider is 1.1.3
The latest version of Facebook Like Box is 1.0.3

If you have earlier versions of these packages you are likely to have the issue you are referring to.

You can check the version fo the install package like this:

1. In the System perspective, expand "Packages" > "Installed Packages" > "Composite.Media"
2. Select "Composite.Media.NivoSlider" and click "Package Info" on the toolbar.
3. When it opens in the right pane, click the "Installation Info" tab
   

Here you can see the version of the installed package.

1. Do the same for the Facebook Like Box, but this time it should be "Packages" > "Installed Packages" > "Composite.Community"
   

If you can't find these packages as I suggested above, look for them under "Packages" > "Installed Packages" > "Local Packages"

If the versions are earlier than I mentioned above, you will need to update the packages.

To update a package, you have to uninstall the installed one and install the latest version of the package from the "Packages" > "Avaialble Packages" .

I highly recommend that you try and do the updates on a copy of the website - not on the live website. Just in case you might need to fix something about the functions of those packages used on the page or in a template.

I am not totally sure but I think, updating to the latest version of the NivoSlider might cause [Error in Function] where the slider is used. This is because the latest version doesn't use one parameter that its earlier version used to use. Removing that parameter should fix the issue.

Hope this makes more sense now :)