Local script if statement doesn't work?

So, I have an if statement that checks if the player has a key, and if the player doesn't have it, it plays a sound. But I have the key and the door doesn't open. The script is also a local script.

game.Players.LocalPlayer.CharacterAdded:Wait()
local Door = workspace.Door.MyBigPPpart
local d = false
local TweenService = game:GetService("TweenService")

Door.ProximityPrompt.Triggered:Connect(function(player)
	if not d then
		d = true
		local anim = player.Character.Humanoid:LoadAnimation(script.Pickup)
		anim:Play()
		if not player.Backpack:FindFirstChild("Door1Key") or not player.Character:FindFirstChild("Door1Key") then
			Door.Lock:Play()
		elseif player.Backpack:FindFirstChild("Door1Key") or player.Character:FindFirstChild("Door1Key") then
			local info = TweenInfo.new(
				1,
				Enum.EasingStyle.Linear,
				Enum.EasingDirection.In,
				0,
				false,
				0
			)
			
			local goals = {
				Position = Vector3.new(470.108, -19.667, 1597.603);
				Orientation = Vector3.new(0, 90, 0)
			}
			
			local ts = TweenService:Create(Door.Parent.Door1, info, goals)
			ts:Play()
			
			local info1 = TweenInfo.new(
				1,
				Enum.EasingStyle.Linear,
				Enum.EasingDirection.In,
				0,
				false,
				0
			)

			local goals1 = {
				Position = Vector3.new(481.541, -19.667, 1597.603);
				Orientation = Vector3.new(0, -90, 0)
			}

			local ts1 = TweenService:Create(Door.Parent.Door2, info1, goals1)
			ts1:Play()
			Door.Open:Play()
		end
		wait(1)
		d = false
	end
end)