I get the following error which blocks another plugin from working. (The other plugin is Facebook Photo Fetcher). How to fix this problem??
Warning: Another plugin has included the Facebook API throughout all of WordPress. I suggest you contact that plugin’s author and ask them to include it only in pages where it’s actually needed.
Things may work fine as-is, but only if the API version included by the other plugin is at least as recent as the one required by Facebook Photo Fetcher.
https://wordpress.org/extend/plugins/facebook-feed-grabber/