Why This Family Members Has 7, Instead Of: 8 On: The Sims 4, For: Me?

Firstly: I've Tested This Character To This Family (Galloway), But, It's Was Full, Because, Instead Of: 8, There's 7, But, I NEED HELP ABOUT: FIXING THIS, BACK TO NORMAL TO: 8 FAMILY MEMBERS, PLEASE? (Thank You!)

System Info For: Me: MSI MPG Z590 GAMING EDGE WIFI, Windows 11 25H2, Intel Core i7-17000K, 16GB Memory, NVIDIA GeForce RTX 3060 GPU!