Hello,
If your cloze deletions are empty, do this: On Anki, go to the top left and find tools, then click on empty cards, then press delete
By image occlusion cards, do you mean 1by1 cards? We don’t have image occlusion cards in the AnKing Step Deck.
If you want to remove the 1by1 cards with crowns, then follow this post: I don’t understand the 👑 on my cards and/or I don’t like it
If all your fields are empty, see this: Why are my cards blank/empty when reviewing?