Release date correction got declined

So I ended up being wrong on the release date on a page I made, since the website listed it as having aired in 1998, but when I looked back at it, I noticed the copyright year was 1998. I tried correcting it, and it had been declined.

Additionally, the American release also aired in 1997 which I could verify thanks to a newspaper listing, so it couldn't have been a production made in a certain year that ended up airing the following year. I cannot find any information on its release in Italy, so it's honestly a rather confusing situation.

Help would be appreciated as always!

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