Progress will not save due to a Facebook error

I reinstalled the game on my ipad after previously saving my progress in Facebook, however once I try to log in I get an error message saying that the game is in developer mode and that I don’t have access to it. I’ve reinstalled before and the progress has saved, so I’m really sure what is going on. I’ve progressed quite a bit in the game, having three event characters and finished the main storyline, so it would be very unfortunate if all the progress had been wiped. If anyone has experienced a similar issue, and can help, that’d be great. Thanks.