Deleted my file after os update in iPad.

I've been using Fresco on my iPad.

I recently bought a new iPad, and synced all of my old iPads to the new iPad.

And the old iPad ran the OS update.

After that, when I ran Fresco on the new iPad, all the important files I had saved before were deleted.

So, I checked the old iPad that had been updated, But it was same new iPad.

How can I fix it?