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This book doesn't seem like it's "linked" to me yet. I'm getting errors in Goodreads while trying to update page count as well. Could someone please fix?

It is on your author page, if it wasn't linked to you it would not be possible for you to open the edit page.
What does the error box say? If it relates to the description it is a bug caused by faulty input from Amazon, replace the description and it will then be OK.