Face consistency nano banana pro - error

Hi, i’m using google flow labs google com, to generate AI pictures for fashion brands. They send mi pictures of their products, and i generate photoshoots with flow. I generate AI face, and then i use that face for whole photoshoot.

From yesterday i can’t upload and use any face to generate pictures, there’s an error that i violate some regulations.

Question: how can i generate exactly the same face on different photos?