Script just ignores the frame in the screengui why?

So, I am making a vote for a map gui but i got one problem the "MapVoting" script can't find the frame in the gui it just ignore the frame that it is sepose to find. And i dont know why this script cant find that frame so i need some help. Someone who knows why it just ignores the frame in the screengui?

Script:

local votedFor = 0
local info = require(game.ReplicatedStorage.MapInformation)

game.ReplicatedStorage.ServerRequest.ShowMapOptions.OnClientEvent:connect(function(map1,map2,map3)
	votedFor = 0
	
	local map1Info = info.GetDetails(map1)
	local map2Info = info.GetDetails(map2)
	local map3Info = info.GetDetails(map3)
	
	-- Map1
	script.Parent.Frame.Map1.MapName.Text = map1Info[2]
	script.Parent.Frame.Map1.Image = "rbxassetid://"..map1Info[3]
	-- Map2
	script.Parent.Frame.Map2.MapName.Text = map2Info[2]
	script.Parent.Frame.Map2.Image = "rbxassetid://"..map2Info[3]
	-- Map3
	script.Parent.Frame.Map3.MapName.Text = map3Info[2]
	script.Parent.Frame.Map3.Image = "rbxassetid://"..map3Info[3]
	
	script.Parent.Frame.Visible = true
	script.Parent.Frame:TweenPosition(UDim2.new(0.5,-250,0.5,-100),"Out","Quad",1)
		
	wait(10)
	script.Parent.Frame:TweenPosition(UDim2.new(0.5,-250,1.5,-100),"Out","Quad",1)	
	wait(2)
	script.Parent.Frame.Visible = false
end)

game.ReplicatedStorage.ServerRequest.ShowMapScores.OnClientEvent:connect(function(map1,map2,map3)
	script.Parent.Frame.Map1.Votes.Text = map1
	script.Parent.Frame.Map2.Votes.Text = map2
	script.Parent.Frame.Map3.Votes.Text = map3
end)

script.Parent.Frame.Map1.MouseButton1Click:connect(function()
	if votedFor == 0 then
		votedFor = 1
		game.ReplicatedStorage.ClientRequest.VoteForMap:FireServer(true,votedFor)
	elseif votedFor == 1 then
		game.ReplicatedStorage.ClientRequest.VoteForMap:FireServer(false,votedFor)
		votedFor = 0
	else
		game.ReplicatedStorage.ClientRequest.VoteForMap:FireServer(false,votedFor)
		votedFor = 1
		game.ReplicatedStorage.ClientRequest.VoteForMap:FireServer(true,votedFor)
	end
end)

script.Parent.Frame.Map2.MouseButton1Click:connect(function()
	if votedFor == 0 then
		votedFor = 2
		game.ReplicatedStorage.ClientRequest.VoteForMap:FireServer(true,votedFor)
	elseif votedFor == 2 then
		game.ReplicatedStorage.ClientRequest.VoteForMap:FireServer(false,votedFor)
		votedFor = 0
	else
		game.ReplicatedStorage.ClientRequest.VoteForMap:FireServer(false,votedFor)
		votedFor = 2
		game.ReplicatedStorage.ClientRequest.VoteForMap:FireServer(true,votedFor)
	end
end)

script.Parent.Frame.Map3.MouseButton1Click:connect(function()
	if votedFor == 0 then
		votedFor = 3
		game.ReplicatedStorage.ClientRequest.VoteForMap:FireServer(true,votedFor)
	elseif votedFor == 3 then
		game.ReplicatedStorage.ClientRequest.VoteForMap:FireServer(false,votedFor)
		votedFor = 0
	else
		game.ReplicatedStorage.ClientRequest.VoteForMap:FireServer(false,votedFor)
		votedFor = 3
		game.ReplicatedStorage.ClientRequest.VoteForMap:FireServer(true,votedFor)
	end
end)

Error:

17:24:50.273 - Frame is not a valid member of ScreenGui
17:24:50.273 - Stack Begin
17:24:50.274 - Script 'Players.Player2.PlayerGui.VoteGui.MapVoting', Line 36

This error is mostly occuring due to the script being loaded before the gui is loaded, or the object actualy doesn't exist.

This is easily fixable by adding this line in your script:

script.Parent:WaitForChild("Frame")

This will tell the script to yield(wait) until it finds an object with the name "Frame"