Touched is not a valid member of Model??????

so im just making a door and this pops up in the output " Touched is not a valid member of Model" can someone help me

local doorModel = script.Parent

local TweenService = game:GetService("TweenService")
local doorTweenInfo = TweenInfo.new(1, Enum.EasingStyle.Linear, Enum.EasingDirection.Out, 0, false, 0)

local leftDoorTween = TweenService:Create(doorModel.leftDoor, doorTweenInfo, {CFrame = doorModel.leftDoorOpen.CFrame})
local rightDoorTween = TweenService:Create(doorModel.rightDoor, doorTweenInfo, {CFrame = doorModel.rightDoorOpen.CFrame})

doorModel.Keyhole.Touched:Connect(function(hit)
    if hit.Parent:IsA("Tool") and hit.Parent.Name == "Key" then
               leftDoorTween:Play()
               rightDoorTween:Play()

    end
end)

can someone help

(p.s. im doing gnomecodes tuotorial for fun so yeah)