Unable to cast value to Object? (Line 14)

local db = false
local service = game:GetService("TweenService")
local info = TweenInfo.new(4.5)
local Door = script.Parent.Parent.Door

script.Parent.Touched:Connect(function(hit)
	if db == false then
		db = true
		if hit.Parent.Name == "Key" then
			local player = game.Players:GetPlayerFromCharacter(hit.Parent.Parent)
			game.ReplicatedStorage.olddoor:FireClient(player)
			db = false
		else 
			local player = game.Players:GetPlayerFromCharacter(hit.Parent.Parent)
			game.ReplicatedStorage.AccessDenied:FireClient(player)
			db = false
			script.Disabled = true
		end
	end
end)