No error. The scratches and gouges are from being scuffed up over time. Post Mint Damage (PMD). Still a wheat cent though.
Damaged. Looks like it spent some time in gravel, or something like that. Under magnification, the gouges do look kind of interesting, but that's all that is: PMD.
There is indeed some raised metal in places, but that's because it got pushed around due to the gouges, when the coin was damaged.