Wrong author link. (The author of this post is a guest author, his name is in the class="guestPostSection" block, so it's definitely not a staff writer.)
Guess you take author link from the JSON, but there we have the following: "name":"CoinSpeaker Staff","url":"https:\/\/www.coinspeaker.com\/author\/staff-writer\/"
So, you took author name from the header and author link from the meta. And meta author name is different from what is seen on the page. And author link is wrong.
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Guess you take author link from the JSON, but there we have the following:
"name":"CoinSpeaker Staff","url":"https:\/\/www.coinspeaker.com\/author\/staff-writer\/"
So, you took author name from the header and author link from the meta. And meta author name is different from what is seen on the page. And author link is wrong.