Answer: None of these symptoms are a good sign. Unfortunately, based on your description, I think your tree may be dead or very close to it. With peeling bark, damaged trunk, dieback, and what sounds like a damaged graft, I do not think it can be saved. But since I have not seen the tree, I might be wrong. I would suggest you consult with your county extension and/or a professionally certified nurseryman to try to trouble shoot what may have happened. I'm sorry about your tree.
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