What cause the problem

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1 
Workspace.Dummy.Script:30: Expected ')' (to close '(' at column 126),

this is my script

function lerp(a, b, c)
	return a + (b - a) * c
end

function quadBezier(t, p0, p1, p2)
	local l1 = lerp(p0, p1, t)
	local l2 = lerp(p1, p2, t)
	local quad = lerp(l1, l2, t)
	return quad
end

while true do
	local part = script.Parent.Parent.RightHand:Clone()
	part.CanCollide = false
	part.Anchored = true
	part.Parent = workspace
	
	print("BEZIERING")
	
	for i = 1, 10 do
		local t = i/10
		local p0 = script.Parent.HumanoidRootPart
		local p1 = script.Parent.HumanoidRootPart.Position + Vector3.new(math.random(-2.5,2.5),math.random(-2.5,2.5),0)
		local p2 = script.Parent.HumanoidRootPart.Position + Vector3.new(0,0,-6)
		local Pos = quadBezier(t, p0.Position, p1, p2)
		local Direction = quadBezier(t + 0.005, p0.Position, p1, p2)
		local tweendelay = wait()
		part.CFrame = CFrame.new(Pos, Direction)
this line	game.TweenService:Create(part,TweenInfo.new(tweendelay),{CFrame = CFrame.new(Pos, Direction) + CFrame.Angles((90,0,0))}):Play()
		wait()
	end
end
2

game.TweenService:Create(part,TweenInfo.new(tweendelay),{CFrame = CFrame.new(Pos, Direction) + CFrame.Angles((90,0,0))}):Play()

Three possible problems:
TweenInfo.new(wait()) isn’t a properly constructed TweenInfo.

CFrame.Angles((90,0,0)) shouldn’t have the extra parenthesis, this may be attempting to assign CFrame.Angles.rx to (90,0,0),

CFrame.new() + CFrame.Angles() doesn’t look like a proper constructor, I’ve not tested this behavior but the wiki doesn’t imply these two can be added. Should you multiply them instead?