I’m having the same problem. The newest API update for the WordPress plugin is what caused it I think (v 4.5.1). Facebook is removing the old layout (the blue/white one) and Nextscripts can’t post to Facebook personal profiles that are using the new layout. Last week Ludwig (the Nextscripts support guy) told me that the most recent plugin update and the 2nd to last API update would fix the problem, but I still couldn’t post to profiles using the new layout. Now the API has been updated again and I’m guessing that update was supposed to fix it, but it’s just made things worse since now we can’t post to Facebook at all!