My battle system broke and i have no idea what's wrong. How do i fix it?

So uhm, it's been months since i last posted here. Hi, hello, i am not dead.

Months ago my very terrible battle system used to work, but when i tried to work on it some more today, well uh, lets say it broke.

I literally did nothing, i just went to test it before continuing anything and it flat out broke.

!!!WARNING!!!

If you have years of experience in scripting the next image may be disturbing

If you wish to continue, then wow you are a brave one

This is the script:

--Variables

local parts = game.Workspace.Parts:GetChildren()
local Players = game:GetService("Players")
local Dummy = game.Workspace.Dummy
local DummyHumanoid = Dummy.Humanoid
local debounce = false
local player = Players.LocalPlayer
local Character = player.Character
local Humanoid = Character:WaitForChild("Humanoid")
local FadeInFrame = script.Parent.Parent.FadeInUI.FadeInFrame
local attacks = require(script.Attacks)

--Battle Loop

for i, v in pairs(parts) do
	v.Touched:Connect(function(hit)
		if hit.Parent:FindFirstChild("Humanoid") then

			script.Parent.Parent.FadeInUI.Enabled = true
			
			Humanoid.WalkSpeed = 0
			Humanoid.JumpPower = 0
			
			v:Destroy()
			
			FadeInFrame.BackgroundTransparency = 1
			
			for k = 1,100 do
				FadeInFrame.BackgroundTransparency -= 0.1
				wait(0.3)
				if FadeInFrame.BackgroundTransparency == 0 then
					break
				end
			end
			script.Parent.Parent.FadeInUI.Enabled = false
			
			script.Parent.Enabled = true
			Character:FindFirstChild("HumanoidRootPart").CFrame = game.Workspace.TpPart.CFrame + Vector3.new(0,1,0)

			if script.Parent.Enabled == true then
				if script.Parent.AtkSelector.Punch.MouseButton1Click then
					script.Parent.AtkSelector.Punch.MouseButton1Click:Connect(function()
						if not debounce then
							debounce = true
							DummyHumanoid.Health = DummyHumanoid.Health - 50
							
							local function typeText(text)
								for i = 1, #text do
									script.Parent.DialogueLabel.Text = string.sub(text, 1, i)
									wait()
								end
								wait(1.5)
								script.Parent.DialogueLabel.Text = ""
							end

							
							if DummyHumanoid.Health <= 0 then
								typeText("You won!")
								Humanoid.WalkSpeed = 16
								Humanoid.JumpPower = 40
								script.Parent.AtkSelector.Punch.Visible = false
								script.Parent.AtkSelector.Cancel.Visible = false
								script.Parent.Enabled = false
								DummyHumanoid.Health = 100
								wait(3)
								debounce = false															
							else
								script.Parent.AtkSelector.Visible = false
								script.Parent.AtkSelector.Punch.Visible = false
								script.Parent.AtkSelector.Cancel.Visible = false
								script.Parent.MagicSelector.Visible = false
								wait(1)					

								typeText("This is the core battle system")
								typeText("Isn't this cool???")					
								typeText("No??")
								typeText("Welp, I tried")
								attacks.AttackOne()
								
								Humanoid.Died:Connect(function()
									typeText("Ded")
									Humanoid.WalkSpeed = 16
									Humanoid.JumpPower = 40
									script.Parent.AtkSelector.Punch.Visible = false
									script.Parent.AtkSelector.Cancel.Visible = false
									script.Parent.Enabled = false
									DummyHumanoid.Health = 100
									debounce = false
								end)
								
								wait(1)
								script.Parent.AtkSelector.Visible = true
								script.Parent.MagicSelector.Visible = true
								wait(3)
								debounce = false
							end
						end	
					end)			
				end		
			end	
		end
	end)
end

Now, i know it's terrible but cope with me here.

Basically the part where it flat out stops working is:

			FadeInFrame.BackgroundTransparency = 1
			
			for k = 1,100 do
				FadeInFrame.BackgroundTransparency -= 0.1
				wait(0.3)
				if FadeInFrame.BackgroundTransparency == 0 then
					break
				end
			end
			script.Parent.Parent.FadeInUI.Enabled = false

The FadeInFrame actually starts appearing, the screen becomes white and it all seems to work. But then, it just stays there.

The screen remains white, you can't move and you never get teleported to where you need to be.

For the love of god please help