invalid argument #2(Vector3 expected, got nil). How do I fix this? Error at line 31

So, I tried to make a lightning superpower script, and somehow, I got it wrong:

wait(1)

---- Services ----

local ReplicatedStorage = game:GetService("ReplicatedStorage")



---- Variables ----

local Remote = ReplicatedStorage:WaitForChild("ZapEvent")



local bolt = Instance.new("Part")
bolt.Size = Vector3.new(.3,.3,.3)
bolt.BrickColor = BrickColor.new("Electric blue")
bolt.CanCollide = false
bolt.Anchored = true
bolt.Material = "Neon"




local function shootElectrode(from,too)
	local lastPos = from
	local step = 2
	local off = 2
	local range = 100
	
	local distance = (from-too).magnitude <-- Error here--
	
	if distance > range then distance = range end
	for i = 0,distance, step do
		local from = lastPos
		
		local offset = Vector3.new(
			math.random(-off,off),
			math.random(-off,off),
			math.random(-off,off)
			)/10
		
		local too = from +- (from-too).unit * step + offset
		
		local p = bolt:Clone()
		
		local DebrisFolder = workspace:FindFirstChild("DebrisFolder") or Instance.new("Folder",workspace)
		DebrisFolder.Name = "DebrisFolder"
		p.Parent = DebrisFolder
		p.Size = Vector3.new(p.Size.x,p.Size.y,(from-too).magnitude)
		p.CFrame = CFrame.new(from:Lerp(too,0.5),too)
		
		game.Debris:AddItem(p,0.1)
		lastPos = too
		
	end
end


local function continueScale(Part)
	local TweenService = game:GetService("TweenService")
	local TweenInform = TweenInfo.new(
		.2,
		Enum.EasingStyle.Linear,
		Enum.EasingDirection.Out,
		0,
		false,
		0
	)
	
	local Properties = {
		Size = Vector3.new(2.901,2.772,35)
	}
	
	local Tween = TweenService:Create(Part,TweenInform,Properties)
	Tween:Play()
end




Remote.OnServerEvent:Connect(function(Player,Aim,MousePos)
	
	local Character = Player.Character
	local RootPart = Character:WaitForChild("HumanoidRootPart")
	local RightHand = Character:WaitForChild("RightHand")
	local Humanoid = Character:WaitForChild("Humanoid")
	
	if Aim then
		local DebrisFolder = workspace:FindFirstChild("DebrisFolder") or Instance.new("Folder",workspace)
		DebrisFolder.Name = "DebrisFolder"
		local Animation = Instance.new("Animation")
		Animation.AnimationId = "rbxassetid://6425400204"
		local LoadAnimation = Character.Humanoid:LoadAnimation(Animation)
		LoadAnimation:Play()
		
		
		local BodPos = Instance.new("BodyPosition")
		BodPos.MaxForce = Vector3.new(5000000,5000000,5000000)
		BodPos.P = 50000
		BodPos.Position = RootPart.Position
		BodPos.Parent = RootPart
		
		spawn(function()
			wait(3)
			BodPos:Destroy()
		end)
		
		local YCFrame = RootPart.Position.Y - Humanoid.HipHeight
		local CharParts = Character:GetChildren()
		
		math.randomseed(tick())
		spawn(function()
			for i = 1,#CharParts do
				local Current = CharParts[i]
				if Current.ClassName == "Part" or Current.ClassName == "MashPart" then
					shootElectrode(Vector3.new(RootPart.Position.X - math.random(-5,5), YCFrame, RootPart.Position.Z - math.random(-5,5), Current.Position))
					shootElectrode(Vector3.new(RootPart.Position.X - math.random(-5,5), YCFrame, RootPart.Position.Z - math.random(-5,5), Current.Position))
					wait()
					
		         end					
	         end		
         end)
		
		
		
	else
		
		local DebrisFolder = workspace:FindFirstChild("DebrisFolder") or Instance.new("Folder",workspace)
		DebrisFolder.Name = "DebrisFolder"
		local HitBox = Instance.new("Part")
		HitBox.Anchored = false
		HitBox.Transparency = 1
		HitBox.CanCollide = false
		HitBox.BrickColor = BrickColor.new("Really black")
		HitBox.Size = Vector3.new(5,5,5)
		HitBox.Parent = DebrisFolder
		
		
		
		
		
		
		spawn(function()
			local repeatnum = 22
			for i = 1,repeatnum do
				shootElectrode(RightHand.Position,MousePos.Position)
				shootElectrode(RightHand.Position,MousePos.Position)
				wait()		
		end
HitBox:Destroy()	
		end)
		
		
		
		local Mag = (RightHand.Position - MousePos.Position).magnitude
		if Mag > 100 then
			Mag = 100
		end		
		
		
HitBox.Size = Vector3.new(5,5,Mag)	
HitBox.Position = RightHand.Position	
HitBox.CFrame = CFrame.new(RightHand.Position,MousePos.Position)	
HitBox.CFrame = HitBox.CFrame * CFrame.new(0,0,-Mag/2)
		
		spawn(function()
			local Sound = Instance.new("Sound")
			Sound.SoundId = "rbxassetid://34419186924"
			Sound.Parent = RootPart
			Sound.PlaybackSpeed = .8
			Sound.RollOffMaxDistance = 300
			Sound.Volume = 7
			Sound:Play()
			
			wait(5)
			Sound:Destroy()
		end)
		
		
		
		local Hitppl = {}
		local beenHit
		
		
		wait(.05)
		HitBox.Touched:Connect(function(hit)
			if not hit.Parent:FindFirstChild("Humanoid") then return end
			if hit.Parent.Name ~= Character.Name then
				
				local NewCharacter = hit.Parent
				if Hitppl[Player.Name] then return end
				Hitppl[Character.Name] = true
				
local Animation = Instance.new("Animation")
Animation.AnimationId = "rbxassetid://6429800435"
local LoadAnimation = NewCharacter:FindFirstChild("Humanoid"):LoadAnimation(Animation)
LoadAnimation:Play()
				
				
				local BodPos = Instance.new("BodyPosition")
				BodPos.MaxForce = Vector3.new(5000000,5000000,5000000)
				BodPos.P = 50000
				BodPos.Position = NewCharacter:FindFirstChild("HumanoidRootPart").Position
				BodPos.Parent = NewCharacter:FindFirstChild("HumanoidRootPart")
                NewCharacter:FindFirstChild("Humanoid"):TakeDamage(30)				
				
				wait(.1)
				
				if hit.Parent:FindFirstChild("Humanoid").Health <= 0 then
					game.Debris:AddItem(BodPos,.1)
				else
					game.Debris:AddItem(BodPos,2)
				end
				
				
				
			
	end	
end)		
		
		
		
		
		
		
		
		
		
	end
	
end)

####put ur code into a block, blue Lua icon in the editor

Problem lies on line 117 and 118

 shootElectrode(Vector3.new(RootPart.Position.X - math.random(-5,5), YCFrame, RootPart.Position.Z - math.random(-5,5), Current.Position))

 shootElectrode(Vector3.new(RootPart.Position.X - math.random(-5,5), YCFrame, RootPart.Position.Z - math.random(-5,5), Current.Position))

You only give it a single argument

while shootElectrode requires 2 arguments which is from and too

shootElectrode(from, too)

too is nil because you only gives value to argument 1

So it errors when you try to do

local distance = (from-too).magnitude

because too is nil

What you probably meant to type in line 117 and 118 is

 shootElectrode(Vector3.new(RootPart.Position.X - math.random(-5,5), YCFrame, RootPart.Position.Z - math.random(-5,5)), Current.Position)

 shootElectrode(Vector3.new(RootPart.Position.X - math.random(-5,5), YCFrame, RootPart.Position.Z - math.random(-5,5)), Current.Position)

because on the previous one, "Current.Position" was inside the Vector3.new