Making Sure Player has Clothes?

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Character.Pants.PantsTemplate = "http://www.roblox.com/asset/?id=(ID)"
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Character.Shirt.ShirtTemplate = "http://www.roblox.com/asset/?id=(ID)" if Character.Shirt == nil then
	Instance.new("Shirt").Parent = Character
	wait()
	Character.Shirt.ShirtTemplate = "http://www.roblox.com/asset/?id=(ID)"
end

Character["Shirt Graphic"].Graphic = "http://www.roblox.com/asset/?id=(ID)" if Character["Shirt Graphic"] == nil then
	Instance.new("ShirtGraphic").Parent = Character
	wait()
	Character["Shirt Graphic"].Graphic = "http://www.roblox.com/asset/?id=(ID)"
end

When I run this script, and the Shirt Graphic is equal to nil, it doesn't run the command told to if it is nil, in the console it just tells me "Attempt to index nil value"

I did add Template IDs into (ID) sections. Earlier in the script it told the script what Character is equal to