Mia Secret Store review for Facebook & Instagram

Pretty useless. I have been trying to create retargeting Ads and it impossible. I keep getting the same error message saying "A problem with Facebook prevented your activity from being published. Try to republish in a few minutes." There is nothing wrong with my Ads account, I have already check everything I could think of. I have no problems publishing Ads directly from Facebook, but what is the point of having the app then?