Here is my error message
Thread 1: "Starting with v13 of the SDK, a client token must be embedded in your client code before making Graph API calls.\nVisit https://developers.facebook.com/apps//settings/advanced/ to find your client token for this app.\nAdd a key named FacebookClientToken to your Info.plist, and add your client token as its value.\nVisit https://developers.facebook.com/docs/ios/getting-started#configure-your-project for more information."
500 errors are given to perform the action.