Error description refers to incorrect element
when a user does not have permission to edit site name or slogan, an incorrect access denied message is displayed: "Defined on the Site Information page. You do not have the appropriate permissions to change the site logo." it refers to "site logo".
Error refers to pages the user does not have access
When a user does not have permission to do something, we don't usually have an explanation message.
I'd like to propose removing the "You do not have the appropriate permissions to change the ...." message. I have a client that became confused why he was not granted permission to do something, despite being so close to being able to do it.
And remove "Defined on the XXX page." text if the user does not have permission to access it.