ImageCreator fails with GenerationError Code=11 on Apple Intelligence-enabled device

When I ran the following code on a physical iPhone device that supports Apple Intelligence, I encountered the following error log. What does this internal error code mean?

Image generation failed with NSError in a different domain: Error Domain=ImagePlaygroundInternal.ImageGeneration.GenerationError Code=11 “(null)”, returning a generic error instead

let imageCreator = try await ImageCreator()
let style = imageCreator.availableStyles.first ?? .animation
let stream = imageCreator.images(for: [.text("cat")], style: style, limit: 1)

for try await result in stream { // error: ImagePlayground.ImageCreator.Error.creationFailed
  _ = result.cgImage
}
ImageCreator fails with GenerationError Code=11 on Apple Intelligence-enabled device
 
 
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