Help me understand, I don't have similar pictures, but they are still classified as if they were.

Hi, it's really really sad. Several of my pictures are rejected with text that I have similar pictures, but I have such a small portfolio that I know all the pictures and I really have nothing, nothing similar to them! I don't know what to do, it's so "random" and arbitrary moderation! Is that a way to get rid of creators? On several of those pictures I searched for similar on all of Adobe and there was nothing, I don't understand anything.