Why isnt this script working?

I wanted to make the script choose a random coin from the table and paste it to the workspace but it didnt work...I know I did something wrong, but it dont get it still..

local Coins = game.ServerStorage.Coins
local CoinsNames = {
"BronzeCoin",
"GoldCoin",
"SilverCoin",
}




while true do
for i,v in pairs(Coins.FolderCoins:GetChildren())do
if v.Name == CoinsNames[math.random(1, #CoinsNames)] then
wait(0.5)
local coin = v:Clone()
coin.Parent = Workspace
end
end
end