Line 21: Attempt to index local 'savedvalue' (a number value)? [Needs resolving]

local datastore = game:GetService("DataStoreService"):GetDataStore("rP")
local serverstorage = game:GetService("ServerStorage")
game.Players.PlayerAdded:connect(function(plyr)
	local rp = Instance.new("IntValue")
	rp.Parent = serverstorage
	rp.Name = "rP-"..plyr.Name
	local key = "plyr"..plyr.userId
	local username = Instance.new("StringValue")
	username.Parent = serverstorage
	username.Name = plyr.Name
	username.Value = plyr.Name
	
	local userid = Instance.new("IntValue")
	userid.Parent = serverstorage
	userid.Name = plyr.Name.."-id"
	userid.Value = plyr.userId
	
	local savedvalue = datastore:GetAsync(key)
	
	if savedvalue then
		rp.Value = savedvalue[1]
		username.Value = savedvalue[2]
		userid.Value = savedvalue[3]
	else
		datastore:SetAsync(key, rp.Value, username.Value,userid.Value)
	end
end)

This is my code. I can't figure out why it cannot index savedvalue.

Any input?