Projectile error (attempt to perform arithmetic (unm) on nil)

[52_ju]

Hello Developers ,
I am having trouble finding out how to fix this error.

• Attack function (One with the error)

function Attack(torso, Distance)
	if CoolDown <=0 or Refresh == true then
		local laser = Instance.new("Part", workspace.Projectiles)
		laser.Name = "Laser"
		
		laser.Anchored = true
		laser.CanCollide = false
		laser.CastShadow = false
		
		laser.Shape = "Cylinder"
		laser.Color = Color3.fromRGB(255, 0, 0)
		laser.Material = Enum.Material.Neon
		
		laser.CFrame = CFrame.new(script.Parent.Position, torso.Position) * CFrame.new(0, 0, - Distance/2)
		laser.Size = Vector3.new(4, GetDistance(torso, Distance), 4)
		
		laser.Transparency = 0.5
	end
end

• Function that is apart of the error

local function GetDistance(torso, Distance)
	Distance = (script.Parent.Position - torso.Position).magnitude
	return Distance
end

Feel to make any edits to this script!

EDIT: the line 52 and, 76 are all linked to line 43 (Attack Function) don’t worry about it unless you positive its something to do with that!

[oOmekooOo (goot)]

It’s telling you that you are trying to unm(-) a nil value, so in the attack function Distance is nil, so you aren’t passing the correct value in(because GetDistance looks fine)