Raycasting не работает (Roblox Studio)

 local a60 = script.Parent 
local distance = 30 
local targlayer = "Players" 
 
function raycast(target) 
	local direction = (target.Position-a60.Position).Unit 
	local raycastParameters = RaycastParams.new() 
	raycastParameters.CollisionGroup = targlayer 
	raycastParameters.FilterType = Enum.RaycastFilterType.Exclude 
	raycastParameters.FilterDescendantsInstances = {a60} 
	raycastParameters.IgnoreWater = true 
	return workspace:Raycast(a60.Position,direction,raycastParameters) 
end 
function kill(target) 
	if target and target:FindFirstChildOfClass("Humanoid") then 
		target.Humanoid.Health = 0 
		print("killed "..target.Name) 
	end 
end 
while wait(1) do 
	for _,player in pairs(game.Players:players()) do 
		if player.Character and player.Character.HumanoidRootPart then 
			local results = raycast(player.Character.HumanoidRootPart) 
			if not results then 
				continue 
			end 
			if not results.Instance then 
				continue 
			end 
			if results.Instance == player.Character.HumanoidRootPart then 
				kill(player.Character) 
			end 
		end 
	end 
end