How do i fix the disappearing of an important part of a tool?

Hello, I have a problem with a tool, what i want to make is a sword that can put the blade in and out the in a blade protector(i'm not sure if its called blade protector) but after doing it, it removes an important part of the tool after few time after taking the blade out then putting it back in, rarely it doesn't, or takes longer than usual.

These are the scripts that i'm using(No errors until the blade is gone and the only error is that the blade is misisng)

Script to weld the tool:

tool = script.Parent

tool.Equipped:Connect(function()
	local weld = Instance.new("Weld")
	weld.Name = "weld1"
	weld.Parent = script.Parent.Handle2
	weld.Part0 = script.Parent.Handle2
	weld.Part1 = script.Parent.Parent:FindFirstChild("LeftHand")
	local weld2 = Instance.new("Weld")
	weld2.Name = "weld1"
	weld2.Parent = script.Parent.BladeProtectorPart
	weld2.Part0 = script.Parent.BladeProtectorPart
	weld2.Part1 = script.Parent.BladePart
end)

tool.Unequipped:Connect(function()
	local weldha1 = script.Parent.HandlePart:FindFirstChild("weld1")
	if weldha1 ~= nil then
		weldha1:Destroy()
	end
	local weldha2 = script.Parent.Handle2:FindFirstChild("weld1")
	if weldha2 ~= nil then
		weldha2:Destroy()
	end
	local weldbpp = script.Parent.BladeProtectorPart:FindFirstChild("weld1")
	if weldbpp ~= nil then
		weldbpp:Destroy()
	end
end)

Local Script to be able to put the blade in and out

local tool = script.Parent
local uis = game:GetService("UserInputService")
local out = false
local enabled = true

tool.Equipped:Connect(function()
	uis.InputBegan:Connect(function(input, gameprocess)
		if not enabled then return end
		enabled = false
		if input.KeyCode == Enum.KeyCode.E then
			local weldbpp = script.Parent.BladeProtectorPart:FindFirstChild("weld1")
			local weldha1 = script.Parent.HandlePart:FindFirstChild("weld1")
			local weldha2 = script.Parent.Handle2:FindFirstChild("weld1")
			if out == true then				
				out = false
				if weldha1 ~= nil then
					weldha1:Destroy()
				end
				local weld01 = Instance.new("Weld")
				weld01.Name = "weld1"
				weld01.Parent = script.Parent.BladeProtectorPart
				weld01.Part0 = script.Parent.BladeProtectorPart
				weld01.Part1 = script.Parent.BladePart
			elseif out == false then
				out = true
				if weldbpp ~= nil then
					weldbpp:Destroy()
				end
				local weld0 = Instance.new("Weld")
				weld0.Name = "weld1"
				weld0.Parent = script.Parent.HandlePart
				weld0.Part0 = script.Parent.HandlePart
				weld0.Part1 = script.Parent.Parent:FindFirstChild("RightHand")
			end
		end
		wait(0.2)
		enabled = true
	end)
end)

Pictures: https://imgur.com/a/Vy2w3vd