After updating the PhotoPhile app, you will almost certainly need to update the Lightroom plugin if you are using it. Both the app and the plugin will tell you if an update is needed.

A suitable version of the plugin is always included with the app itself, and can be downloaded directly from your iPad. Go to the Info tab and follow the instructions there to download the plugin. It is installed into Lightroom in exactly the same way as any other plugin.

There are more detailed instructions on installing plugins at http://www.learn-to-lightroom.com/articles/using-the-plugin-manager/ .