bad argument #3 to 'CFrame' (CFrame expected, got Vector3)?

remote.OnServerEvent:Connect(function(Player, active, mp, charge)
	local char = Player.Character
	local Hand = char:FindFirstChild("RightLowerArm")
	if not active then
	local Humanoid = char:WaitForChild("Humanoid")
		local anim = Humanoid:LoadAnimation(script:FindFirstChild("id"))
		anim:Play()
			local pos1 = mp
		while charge do
		Player.Character.HumanoidRootPart.CFrame =CFrame.new(Player.Character.HumanoidRootPart.Position,pos1)
			wait()
		end
		
		anim:Stop()
		
		
	end
end)

help, im trying to find a solution for this but it doesn't seem to work, i changed it to vector3 and it tells me again got vector3 expected cframe