numbervalue change LocalPlayer FieldOfView? TEXTBUTTON

i am here for a simple question how can i fix this ? without using workspace.Camera or something cause i wanna it to save when the player comes back. thats why i use numbervalue

    local FieldOfView = game.Players.LocalPlayer.PlayerSettings.FieldOfView
    
    script.Parent.MouseButton1Click:Connect(function()
        FieldOfView.Value = 50
    end)
    ```