Before anything, please make sure you’ve got the latest version of Facebook and Pirate Kings on your device. To do so, open the App Store or Google Play to see if there are available updates.
Next, please try the steps below:
Logout from the Facebook App.
Logout from Facebook website in your browser.
On your device settings, go to the Facebook app so that you can logout and log back in again.
Close all the programs running on your device.
Open Pirate Kings, go to settings and click “connect to Facebook.”