How To Fix Error, "bad argument #2 to 'random' (interval is empty)?"

I am trying to make a crate system. I have Commons, Rares, Legends, and Godly's. Everything unboxes just fine but when I try to unbox the Godly Crate This Error Shows, " . Allbad argument #2 to 'random' (interval is empty)" Crates run through the same script, so I don't get why it does this. Help if you can! Here is the part of the codes that shows the error,

local Choose = math.random(1,100);


                local ChanceTable = {};
                for Rarity,Chance in pairs(Chances) do
                    for i = 1,Chance do 
                        table.insert(ChanceTable,Rarity);
                    end
                end;

                SelectedRarity = ChanceTable[math.random(1,#ChanceTable)];
                SelectedKnife = ItemTable[SelectedRarity][math.random(1,#ItemTable[SelectedRarity])];  -- Shows the error on this line  

                ChanceTable = {};