My parameter is in my function but I'm getting errors on my CFrame script..?

So I have a parameter for pos set up and I'm getting an error for this:

model:SetPrimaryPartCFrame(CFrame.New(pos.X, pos.Y, pos.Z) * CFrame.Angles(0, math.rad(data.CFrame.Rotation), 0))

02:57:45.472 - X is not a valid member of Folder

There is a folder named Models with a model inside that has a primary part set up