for a quick fix

Thread.lua

local EnumList = require(script.Parent.EnumList)
local Timer = require(script.Parent.Timer)

local Thread = {}
Thread.DelayRepeatBehavior = EnumList.new("DelayRepeatBehavior", {"Delayed", "Immediate"})

function Thread.SpawnNow(func, ...)
	local args = table.pack(...)
	task.spawn(function()
		func(table.unpack(args, 1, args.n))
	end)

	local conn = {}
	conn.Connected = true
	conn.connected = true

	function conn:Disconnect()
		if self.Connected then
			self.Connected = false
			self.connected = false
		end
	end

	conn.disconnect = conn.Disconnect
	return conn
end

function Thread.Spawn(func, ...)
	local args = table.pack(...)
	local stop = false
	task.defer(function()
		if stop then
			return
		end

		func(table.unpack(args, 1, args.n))
	end)

	local conn = {}
	conn.Connected = true
	conn.connected = true

	function conn:Disconnect()
		if self.Connected then
			self.Connected = false
			self.connected = false
			stop = true
		end
	end

	conn.disconnect = conn.Disconnect
	return conn
end

function Thread.Delay(waitTime, func, ...)
	local args = table.pack(...)
	local stop = false
	task.delay(waitTime, function()
		if stop then
			return
		end

		func(table.unpack(args, 1, args.n))
	end)

	local conn = {}
	conn.Connected = true
	conn.connected = true

	function conn:Disconnect()
		if self.Connected then
			self.Connected = false
			self.connected = false
			stop = true
		end
	end

	conn.disconnect = conn.Disconnect
	return conn
end

function Thread.DelayRepeat(intervalTime, func, behavior, ...)
	local args = table.pack(...)
	if behavior == nil then
		behavior = Thread.DelayRepeatBehavior.Delayed
	end

	assert(Thread.DelayRepeatBehavior:Is(behavior), "Invalid behavior")

	local timer = Timer.new(intervalTime)
	timer.Tick:Connect(function()
		func(table.unpack(args, 1, args.n))
	end)

	if behavior == Thread.DelayRepeatBehavior.Immediate then
		timer:StartNow()
	else
		timer:Start()
	end

	local conn = {}
	conn.Connected = true
	conn.connected = true

	function conn:Disconnect()
		if self.Connected then
			self.Connected = false
			self.connected = false
			timer:Destroy()
		end
	end

	conn.disconnect = conn.Disconnect
	return conn
end

return Thread