Vector3:Lerp not working?

I've tried using Lerp on multiple codes and got the same error message:

maximum event re-entrancy depth exceeded

Here's one of the codes (deleted others)

	local player = game.Players.LocalPlayer
local Tool = script.Parent.Parent
local body = player.Character
local mouse = player:GetMouse()
--Head = script.Parent.Parent.Parent.Character.Head
	
xSway = 0.1
ySway = 0.1
maxX = 0.35
maxY = 0.35
smooth = 3.0
	
	
	Tool.Equipped:connect(function(mouse)
	On = true

while On == true do
	wait()
						local LocPosX = script.Parent.CFrame.X --script.Parent.Gun.CFrame.X --body.Torso.Neck.CFrame.lookVector
		local LocPosY = script.Parent.CFrame.Y --script.Parent.Gun.CFrame.Y
		local LocPosZ = script.Parent.CFrame.Z --script.Parent.Gun.CFrame.Z
			local LocPos = script.Parent.CFrame.p --script.Parent.Gun.CFrame.p
		
		
		fx = body.Head.CFrame.lookVector.x * xSway
		fy = body.Head.CFrame.lookVector.y * ySway
	
		if fx > maxX then 
			fx = maxX
		end
		
		if fx > -maxX then 
			fx = maxX
		end
		
		if fx > maxY then 
			fx = maxY
		end
		
		if fx > -maxY then 
			fx = maxY
		end
		
		local detection = Vector3.new(LocPosX + fx,LocPosY + fy, LocPosZ)
		script.Parent.Position = LocPos:Lerp( detection,tick() * smooth)
		
end

Tool.Unequipped:connect(function(mouse)		
On = false
end)
end)

This is a weird bug in Roblox.

In short terms, if you insert something into the character immediately after equipping, the Equipped event will for some reason fire again.

Therefore, you get this error because the event keeps firing 'Equipped' over and over again.

See if this helps:

    local player = game.Players.LocalPlayer
local Tool = script.Parent.Parent
local body = player.Character
local mouse = player:GetMouse()
--Head = script.Parent.Parent.Parent.Character.Head

xSway = 0.1
ySway = 0.1
maxX = 0.35
maxY = 0.35
smooth = 3.0

Tool.Equipped:connect(function(mouse)
wait()
On = true
while On  do
wait()
local LocPosX = script.Parent.CFrame.X --script.Parent.Gun.CFrame.X --body.Torso.Neck.CFrame.lookVector
local LocPosY = script.Parent.CFrame.Y --script.Parent.Gun.CFrame.Y
local LocPosZ = script.Parent.CFrame.Z --script.Parent.Gun.CFrame.Z
local LocPos = script.Parent.CFrame.p --script.Parent.Gun.CFrame.p
fx = body.Head.CFrame.lookVector.x * xSway
fy = body.Head.CFrame.lookVector.y * ySway

if fx > maxX then 
     fx = maxX
end

if fx > -maxX then 
     fx = maxX
end

if fx > maxY then 
     fx = maxY
end

if fx > -maxY then 
    fx = maxY
end

local detection = Vector3.new(LocPosX + fx,LocPosY + fy, LocPosZ)
script.Parent.Position = LocPos:Lerp( detection,tick() * smooth)
end

Tool.Unequipped:connect(function(mouse)     
On = false
end)
end)