I think an actor is incorrectly credited for a TV episode

In the later episodes of Midsomer Murders, the character Betty Barnaby is the very young daughter of the main character.  The credits list the actor as 'Isabel Shaw'.  However, there are two Isabel Shaws in the database.  The one labeled II is credited 2018-2022 and would appear to be the correct one.  The other one, credited in the last 2023 show, has a biography that says she was born in 1981, which would make here 42 years old in this show. This is wrong.  The girls shown is at best of grade school age.  

Someone who knows how might try to fix this.