Ahem. I am having problems with my NPC and I need help! Can someone please help me?

The NPC just twerks around when it trys to walk through small hallways. It happens after i make i some "Light" part for the eyes (NOT SPOTLIGHT). I used WeldConstrait and I'm sure that it's all uncan collide. Please help me, I can't seems to fix it.

 function findNearestTorso(pos)
	local list = game.Workspace:GetChildren()
	local torso = nil
	local dist = 10
	local temp = nil
	local human = nil
	local temp2 = nil
	for x = 1, #list do
		temp2 = list[x]
		if (temp2.ClassName == "Model") and (temp2 ~= script.Parent) then
			temp = temp2:FindFirstChild("Torso")
			human = temp2:FindFirstChild("Humanoid")
			if (temp ~= nil) and (human ~= nil) and (human.Health > 0) then
				if (temp.Position - pos).magnitude < dist then
					torso = temp
					dist = (temp.Position - pos).magnitude
				end
			end
		end
	end
	return torso
end

local PathfindingService = game:GetService("PathfindingService")
 
local PATROL_DELAY = 0.5
 

local enemy = script.Parent
local humanoid = enemy.Humanoid
local humanoidRootPart = enemy.HumanoidRootPart
 
local pointA = game.Workspace:FindFirstChild("pointA")
local pointB = game.Workspace:FindFirstChild("pointB")
local pointC = game.Workspace:FindFirstChild("pointC")
local pointC1 = game.Workspace:FindFirstChild("pointC1")
local pointC2 = game.Workspace:FindFirstChild("pointC2")
local pointD = game.Workspace:FindFirstChild("pointD")
local pointE = game.Workspace:FindFirstChild("pointE")
local point = game.Workspace:FindFirstChild("point")


local currentDestination = pointA
 
while wait(PATROL_DELAY) do
	local startingPosition = humanoidRootPart.Position
	local goalPosition = currentDestination.Position
	
	local path = PathfindingService:FindPathAsync(startingPosition, goalPosition)
	local waypoints = path:GetWaypoints()

	for waypointIndex, waypoint in pairs(waypoints) do
		local waypointPosition = waypoint.Position
		humanoid:MoveTo(waypointPosition)
		humanoid.MoveToFinished:Wait()
	end	
	
	if currentDestination == pointA then
		currentDestination = pointB
	elseif currentDestination == pointB then
		currentDestination = pointC
	elseif currentDestination == pointC then
		currentDestination = pointC1
	elseif currentDestination == pointC1 then
		currentDestination = pointC2
	elseif currentDestination == pointC2 then
		local m = math.random(2)
		if m == 1 then
			currentDestination = pointD
		else
			currentDestination = pointE
		end
			elseif currentDestination == pointD then
		currentDestination = pointA
			elseif currentDestination == pointE then
		currentDestination = point
		elseif currentDestination == point then
		currentDestination = pointD
		elseif currentDestination == pointD then
		currentDestination = point
		elseif currentDestination == point then
		currentDestination = pointD
	end
end
		
script.Parent.Lighten.Touched:Connect(function(hit)
	if hit.Parent:FindFirstChild("Humanoid") then
		print("got em")
	end
end)