How can I make this code neater and fix finding Player's GUI?

local flag1 = game.Workspace.Flags.Flag1
local flag2 = game.Workspace.Flags.Flag2
local flag3 = game.Workspace.Flags.Flag3
local flag4 = game.Workspace.Flags.Flag4

flag1.CurrentOwner.Changed:connect(function()
	
	if flag1.CurrentOwner.Value == BrickColor.new("Bright blue") then
		game.StarterGui.SpawnGui.Frame.Flag1.BackgroundColor3 = Color3.new(85/255, 170/255, 255/255)
		for i, players in pairs(game.Players:GetPlayers()) do
			players.PlayerGui.SpawnGui.Frame.Flag1.BackgroundColor3 = Color3.new(85/255, 170/255, 255/255)
		end
		
	elseif flag1.CurrentOwner.Value == BrickColor.new("Bright red") then
		game.StarterGui.SpawnGui.Frame.Flag1.BackgroundColor3 = Color3.new(255/255, 80/255, 80/255)
		for i, players in pairs(game.Players:GetPlayers()) do
			players.PlayerGui.SpawnGui.Frame.Flag1.BackgroundColor3 = Color3.new(255/255, 80/255, 80/255)
		end
		
	elseif flag1.CurrentOwner.Value == BrickColor.new("Fossil") then 
		game.StarterGui.SpawnGui.Frame.Flag1.BackgroundColor3 = Color3.new(207/255, 207/255, 207/255)
		for i, players in pairs(game.Players:GetPlayers()) do
			players.PlayerGui.SpawnGui.Frame.Flag1.BackgroundColor3 = Color3.new(207/255, 207/255, 207/255)
		end
	end
	
end)
	

flag2.CurrentOwner.Changed:connect(function()
	
	if flag2.CurrentOwner.Value == BrickColor.new("Bright blue") then
		game.StarterGui.SpawnGui.Frame.Flag2.BackgroundColor3 = Color3.new(85/255, 170/255, 255/255)
		for i, players in pairs(game.Players:GetPlayers()) do
			players.PlayerGui.SpawnGui.Frame.Flag2.BackgroundColor3 = Color3.new(85/255, 170/255, 255/255)
		end
		
	elseif flag2.CurrentOwner.Value == BrickColor.new("Bright red") then
		game.StarterGui.SpawnGui.Frame.Flag2.BackgroundColor3 = Color3.new(255/255, 80/255, 80/255)
		for i, players in pairs(game.Players:GetPlayers()) do
			players.PlayerGui.SpawnGui.Frame.Flag2.BackgroundColor3 = Color3.new(255/255, 80/255, 80/255)
		end
		
	elseif flag2.CurrentOwner.Value == BrickColor.new("Fossil") then 
		game.StarterGui.SpawnGui.Frame.Flag2.BackgroundColor3 = Color3.new(207/255, 207/255, 207/255)
		for i, players in pairs(game.Players:GetPlayers()) do
			players.PlayerGui.SpawnGui.Frame.Flag2.BackgroundColor3 = Color3.new(207/255, 207/255, 207/255)
		end
	end
	
end)
	
	
flag3.CurrentOwner.Changed:connect(function()
	
	if flag3.CurrentOwner.Value == BrickColor.new("Bright blue") then
		game.StarterGui.SpawnGui.Frame.Flag3.BackgroundColor3 = Color3.new(85/255, 170/255, 255/255)
		for i, players in pairs(game.Players:GetPlayers()) do
			players.PlayerGui.SpawnGui.Frame.Flag3.BackgroundColor3 = Color3.new(85/255, 170/255, 255/255)
		end
		
	elseif flag3.CurrentOwner.Value == BrickColor.new("Bright red") then
		game.StarterGui.SpawnGui.Frame.Flag3.BackgroundColor3 = Color3.new(255/255, 80/255, 80/255)
		for i, players in pairs(game.Players:GetPlayers()) do
			players.PlayerGui.SpawnGui.Frame.Flag3.BackgroundColor3 = Color3.new(255/255, 80/255, 80/255)
		end
		
	elseif flag3.CurrentOwner.Value == BrickColor.new("Fossil") then 
		game.StarterGui.SpawnGui.Frame.Flag3.BackgroundColor3 = Color3.new(207/255, 207/255, 207/255)
		for i, players in pairs(game.Players:GetPlayers()) do
			players.PlayerGui.SpawnGui.Frame.Flag3.BackgroundColor3 = Color3.new(207/255, 207/255, 207/255)
		end
	end
	
end)


flag4.CurrentOwner.Changed:connect(function()
	
	if flag4.CurrentOwner.Value == BrickColor.new("Bright blue") then
		game.StarterGui.SpawnGui.Frame.Flag4.BackgroundColor3 = Color3.new(85/255, 170/255, 255/255)
		for i, players in pairs(game.Players:GetPlayers()) do
			players.PlayerGui.SpawnGui.Frame.Flag4.BackgroundColor3 = Color3.new(85/255, 170/255, 255/255)
		end
		
	elseif flag4.CurrentOwner.Value == BrickColor.new("Bright red") then
		game.StarterGui.SpawnGui.Frame.Flag4.BackgroundColor3 = Color3.new(255/255, 80/255, 80/255)
		for i, players in pairs(game.Players:GetPlayers()) do
			players.PlayerGui.SpawnGui.Frame.Flag4.BackgroundColor3 = Color3.new(255/255, 80/255, 80/255)
		end
		
	elseif flag4.CurrentOwner.Value == BrickColor.new("Fossil") then 
		game.StarterGui.SpawnGui.Frame.Flag4.BackgroundColor3 = Color3.new(207/255, 207/255, 207/255)
		for i, players in pairs(game.Players:GetPlayers()) do
			players.PlayerGui.SpawnGui.Frame.Flag4.BackgroundColor3 = Color3.new(207/255, 207/255, 207/255)
		end
	end
	
end)

Error: SpawnGui is not a valid member of PlayerGui

It's inside ServerScriptService