Character editing - not authorized to perform this action > Likes and Comments

Hello

I have tried to edit the characters within the Work Settings for Scam at Old River, but I repeatedly get the message that I am not authorized to perform this action.

How can I make these updates to this and my other books in the series.

https://www.goodreads.com/book/edit/5...
https://www.goodreads.com/book/show/2...

Thank you

If you want to list the characters here, a librarian may add them.