Issue with Datastore?

I'm attempting to create a sort of "data center" for a clan.

I've created a datastore that spawns certain values whenever a player joins into ReplicatedStorage, values that have unique IDs according to the player.

Anyway, that all works fine, but the problem is that if a new server starts, those values don't automatically spawn with their saved values unless that player joins the server again.

How would I make the datastore "remember" to insert those values back into replicatedstorage again even if the player those values were assigned to hadn't joined the server yet?

Here's my code for reference

local datastore = game:GetService("DataStoreService"):GetDataStore("rP")
print("Got datastore!")
local serverstorage = game:GetService("ReplicatedStorage")
print("Got serverstorage!")

game.Players.PlayerAdded:connect(function(plyr)
    local rp = Instance.new("IntValue")
    rp.Parent = serverstorage
    rp.Name = "rP-"..plyr.Name
    print("rp made!")
    local key = "plyr"..plyr.userId
    print("Key generated!")
    local username = Instance.new("StringValue")
    username.Parent = serverstorage
    username.Name = plyr.Name
    username.Value = plyr.Name
    print("Username has been created and inserted into serverstorage.")

    local userrank = Instance.new("IntValue")
    userrank.Parent = serverstorage
    userrank.Name = plyr.Name.."-rank"
    userrank.Value = plyr:GetRankInGroup(2530182)

    local userid = Instance.new("IntValue")
    userid.Parent = serverstorage
    userid.Name = plyr.Name.."-id"
    userid.Value = plyr.userId
    print("userid acquired!")

    local savedvalue = datastore:GetAsync(key)
    print("Savedvalue loaded")

    if savedvalue and contents then
        savedvalue[1] = rp.Value
        savedvalue[2] = username.Value
        savedvalue[3] = userid.Value
        savedvalue[4] = userrank.Value
        print("Savedvalue table generated")
    else
        datastore:SetAsync(key, {rp.Value, username.Value,userid.Value,userrank.Value})
        print("Items saved")
    end
end)

Sorry if my question sounded a bit confusing. If you need me to elaborate, please let me know.