Help Work[sp].Touch Tesla Gate.Main:16: 'end' expected (to close 'function' at line 13) near 'else'?

I don't understand where to put the 'end' as I have been trying for the past hour.

local Mode = 1

local Button = script.Parent.Button.Button
local OnlineLight = script.Parent.Online
local OfflineLight = script.Parent.Offline
local Electricity = script.Parent.Electricity
local Detector = script.Parent.Detector
local Main = script.Parent

local Debounce = false


Button.Touched:connect(function(Player)
	if Debounce then return end
	Debounce = true
	    else if Mode == 1 then
		wait(3)
		Electricity.ComingOnline:Play()
		wait(0.85)
		Electricity.Humming:Play()
		script.Parent.EmitterTest.a.ParticleEmitter.Enabled = true
		script.Parent.EmitterTest.b.ParticleEmitter.Enabled = true
		script.Parent.EmitterTest.c.ParticleEmitter.Enabled = true
		script.Parent.EmitterTest.d.ParticleEmitter.Enabled = true
		script.Parent.EmitterTest.e.ParticleEmitter.Enabled = true
		script.Parent.EmitterTest.f.ParticleEmitter.Enabled = true
		Mode = 2
        if Mode == 2 then
		wait(3)
		Electricity.GoingOffline:Play()
		wait(0.85)
		script.Parent.EmitterTest.a.ParticleEmitter.Enabled = false
		script.Parent.EmitterTest.b.ParticleEmitter.Enabled = false
		script.Parent.EmitterTest.c.ParticleEmitter.Enabled = false
		script.Parent.EmitterTest.d.ParticleEmitter.Enabled = false
		script.Parent.EmitterTest.e.ParticleEmitter.Enabled = false
		script.Parent.EmitterTest.f.ParticleEmitter.Enabled = false
		Electricity.Humming:Stop()
		Mode = 1
	end
	wait(0.4)
	Debounce = false
end

Spawn(function()
	while wait(0.5) do
		if Mode == 1 then
			OnlineLight.Transparency = 1
			if OfflineLight.Transparency == 0.5 then
				OfflineLight.Transparency = 0
			else
				OfflineLight.Transparency = 0.5
			end
		elseif Mode == 2 then
			OfflineLight.Transparency = 1
			if OnlineLight.Transparency == 0.5 then
				OnlineLight.Transparency = 0
			else
				OnlineLight.Transparency = 0.5
			end
		end
	end
end)

Spawn(function()
	while wait() do
		for _,Player in pairs(game.Players:GetPlayers()) do
			if Player.Character and Player.Character:FindFirstChild("Torso") then
				if (Player.Character.Torso.Position - Detector.Position).Magnitude <= 7 then
					if Mode == 2 then
						Electricity.Humming.Volume = 1
						Electricity.Power:Play()
						wait(0.45)
						script.Parent.MiddleStop.CanCollide = true
						script.Parent.Stop1.CanCollide = true
						script.Parent.Stop2.CanCollide = true
						Electricity.Zap:Play()
						if Player.Character and Player.Character:FindFirstChild("Torso") then
							if (Player.Character.Torso.Position - Detector.Position).Magnitude <= 7 then
								Player.Character.Humanoid.Health = 0
						script.Parent.MiddleStop.CanCollide = false
						script.Parent.Stop1.CanCollide = false
						script.Parent.Stop2.CanCollide = false
							end
						end
						script.Parent.MiddleStop.CanCollide = false
						script.Parent.Stop1.CanCollide = false
						script.Parent.Stop2.CanCollide = false
						Main.Left.Material = "Neon"
						Main.Right.Material = "Neon"
						Electricity.Decal1a.Transparency = 0
						Electricity.Decal1b.Transparency = 0
						wait(0.01)
						Electricity.Decal1a.Transparency = 1
						Electricity.Decal1b.Transparency = 1
						Electricity.Decal2a.Transparency = 0
						Electricity.Decal2b.Transparency = 0
						wait(0.01)
						Electricity.Decal1a.Transparency = 1
						Electricity.Decal1b.Transparency = 1
						Electricity.Decal2a.Transparency = 1
						Electricity.Decal2b.Transparency = 1
						wait(0.01)
						Electricity.Decal1a.Transparency = 0
						Electricity.Decal1b.Transparency = 0
						wait(0.01)
						Electricity.Decal1a.Transparency = 1
						Electricity.Decal1b.Transparency = 1
						Electricity.Decal2a.Transparency = 0
						Electricity.Decal2b.Transparency = 0
						wait(0.01)
						Electricity.Decal1a.Transparency = 1
						Electricity.Decal1b.Transparency = 1
						Electricity.Decal2a.Transparency = 1
						Electricity.Decal2b.Transparency = 1
						wait(0.01)
						Electricity.Decal1a.Transparency = 0
						Electricity.Decal1b.Transparency = 0
						wait(0.01)
						Electricity.Decal1a.Transparency = 1
						Electricity.Decal1b.Transparency = 1
						Electricity.Decal2a.Transparency = 0
						Electricity.Decal2b.Transparency = 0
						wait(0.01)
						Electricity.Decal1a.Transparency = 1
						Electricity.Decal1b.Transparency = 1
						Electricity.Decal2a.Transparency = 1
						Electricity.Decal2b.Transparency = 1
						wait(0.01)
						Electricity.Decal1a.Transparency = 0
						Electricity.Decal1b.Transparency = 0
						wait(0.01)
						Electricity.Decal1a.Transparency = 1
						Electricity.Decal1b.Transparency = 1
						Electricity.Decal2a.Transparency = 0
						Electricity.Decal2b.Transparency = 0
						wait(0.01)
						Electricity.Decal1a.Transparency = 1
						Electricity.Decal1b.Transparency = 1
						Electricity.Decal2a.Transparency = 1
						Electricity.Decal2b.Transparency = 1
						wait(0.01)
						Electricity.Decal1a.Transparency = 0
						Electricity.Decal1b.Transparency = 0
						wait(0.01)
						Electricity.Decal1a.Transparency = 1
						Electricity.Decal1b.Transparency = 1
						Electricity.Decal2a.Transparency = 0
						Electricity.Decal2b.Transparency = 0
						wait(0.01)
						Electricity.Decal1a.Transparency = 1
						Electricity.Decal1b.Transparency = 1
						Electricity.Decal2a.Transparency = 1
						Electricity.Decal2b.Transparency = 1
						Main.Left.Material = "Metal"
						Main.Right.Material = "Metal"
						wait(1)
						Electricity.Humming.Volume = 0.5
					end
				end
			end
		end
	end)
	

How do I fix this?