what could I do so the while loop actually loops through the text and not cause an error?

wait(game.Lighting.TimeToLoad.Value)

local UIS = game:GetService("UserInputService")
local p = game.Players.LocalPlayer
chainnum = 0
chain = "None"
chainText = "None"


--//Animations
local combat1 = script:FindFirstChild("Animations").punchOne
local animTrack1 = p.Character.Humanoid:LoadAnimation(combat1)
--
local combat2 = script:FindFirstChild("Animations").punchTwo
local animTrack2 = p.Character.Humanoid:LoadAnimation(combat2)
--
local combat3 = script:FindFirstChild("Animations").punchThree
local animTrack3 = p.Character.Humanoid:LoadAnimation(combat3)
--
local combat4 = script:FindFirstChild("Animations").punchFour
local animTrack4 = p.Character.Humanoid:LoadAnimation(combat4)
--
local combat5= script:FindFirstChild("Animations").punchFive
local animTrack5 = p.Character.Humanoid:LoadAnimation(combat5)
--
local combat6 = script:FindFirstChild("Animations").punchFour
local animTrack6 = p.Character.Humanoid:LoadAnimation(combat6)

local function Combat(Input, gameProcessedEvent)
	local KeyCode = Input.UserInputType
	
	if KeyCode == Enum.UserInputType.MouseButton1 and script.canAttack.Value == true and chainnum == 0 then
		chainnum = 1
		chainText = p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.Text
		p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.Text = "L"
		print("1")
		animTrack1:Play()
	--	p.PlayerGui.MainGui.Frame["Ki Frame"].Size  = p.PlayerGui.MainGui.Frame["Ki Frame"].Size  + UDim2.new(.03, 0, 0, 0)
		wait(0.5)
		chainnum = 2
		
	else
	if KeyCode == Enum.UserInputType.MouseButton1 and script.canAttack.Value == true and chainnum == 2 then
		chainnum = 3
		chainText = p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.Text
		p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.Text = "L-L"
		print("2")
		animTrack2:Play()
	--	p.PlayerGui.MainGui.Frame["Ki Frame"].Size  = p.PlayerGui.MainGui.Frame["Ki Frame"].Size  + UDim2.new(.03, 0, 0, 0)
		wait(0.5)
		chainnum = 4
		
	else
	if KeyCode == Enum.UserInputType.MouseButton1 and script.canAttack.Value == true and chainnum == 4 then
		chainnum = 5
		chainText = p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.Text
		p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.Text = "L-L-L"
		print("3")
		animTrack3:Play()
	--	p.PlayerGui.MainGui.Frame["Ki Frame"].Size  = p.PlayerGui.MainGui.Frame["Ki Frame"].Size  + UDim2.new(.03, 0, 0, 0)
		wait(0.5)
		chainnum = 6
		
	else
	if KeyCode == Enum.UserInputType.MouseButton1 and script.canAttack.Value == true and chainnum == 6 then
		chainnum = 7
		chainText = p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.Text
		p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.Text = "L-L-L-L"
		print("4")
		animTrack4:Play()
	--	p.PlayerGui.MainGui.Frame["Ki Frame"].Size  = p.PlayerGui.MainGui.Frame["Ki Frame"].Size  + UDim2.new(.03, 0, 0, 0)
		wait(0.5)
		chainnum = 8
		
	else
	if KeyCode == Enum.UserInputType.MouseButton1 and script.canAttack.Value == true and chainnum == 8 then
		chainnum = 7
		chainText = p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.Text
		p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.Text = "L-L-L-L-L"
		print("5")
		animTrack5:Play()
	--	p.PlayerGui.MainGui.Frame["Ki Frame"].Size  = p.PlayerGui.MainGui.Frame["Ki Frame"].Size  + UDim2.new(.03, 0, 0, 0)
		wait(0.5)
		chainnum = 9
		
	else
	if KeyCode == Enum.UserInputType.MouseButton1 and script.canAttack.Value == true and chainnum == 9 then
		chainnum = 10
		chainText = p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.Text
		p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.Text = "L-L-L-L-L-L"
		p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.TextColor3 = Color3.new(0, 255, 0)
		print("6")
		animTrack6:Play()
	--	p.PlayerGui.MainGui.Frame["Ki Frame"].Size  = p.PlayerGui.MainGui.Frame["Ki Frame"].Size  + UDim2.new(.03, 0, 0, 0)
		wait(0.5)
		chainnum = 0
		p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.Text = "None"
		p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.TextColor3 = Color3.new(255, 255, 0)
		end
	end
	end
	end
	end
	end
end

local oldtext = chainText

while wait(1) do 
    if p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.Text == oldtext and chainnum > 0 then
        p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.Text = 'None' --this would technically be none since it's empty
chainnum = 0
    else
        oldtext = p.PlayerGui.PlayerGuis.Menu.mouseLabels.TextLabel.Text
    end
end

UIS.InputBegan:Connect(Combat)

The while wait(1) do part is where the problem occurs. Any help?