How do you fix the "Argument 3 is missing or nil" error? (SOLVED)

I'm trying to make a script that detects if a player is under 13 or not, and it involves RemoteFunctions. Here is my LocalScript that is located inside a TextLabel:

local under13 = game.ReplicatedStorage:WaitForChild("GetUnder13"):InvokeServer(game.Players.LocalPlayer)
if under13 then script.Parent.Text = "<13" else script.Parent.Text = "13+" end

And here is my Script that is located in ServerScriptService:

function GetUnder13(player) return (game:GetService("Chat"):FilterStringAsync("suck", player)):match("#") and true or false end
game.ReplicatedStorage.GetUnder13.OnServerInvoke = GetUnder13

Here was the output when I ran the game:

15:26:59.312 - Baseplate auto-recovery file was created
15:27:01.350 - Unable to open plugin file (bad file format):
15:27:01.351 - Plugin_659505827
15:27:02.122 - Unable to open plugin file (bad file format):
15:27:02.123 - Plugin_659505827
15:27:05.248 - Argument 3 missing or nil <-- This is the error
15:27:05.249 - Stack Begin
15:27:05.249 - Script 'ServerScriptService.GetUnder13ForLocalScripts', Line 1
15:27:05.251 - Stack End
15:27:05.500 - Argument 3 missing or nil <-- This is the error
15:27:05.501 - Stack Begin
15:27:05.501 - Script 'Players.Owengren.PlayerGui.Home Menu.Gui.Frame.Age.ReplaceLabel', Line 1
15:27:05.502 - Stack End
15:27:09.611 - Disconnect from 127.0.0.1|61988

How is this happening? I have an argument, but I'm not sure about Argument 3!

Solution

I found out that FilterStringAsync() requires a third value which is needed! In order, the values are stringToFilter = "suck", playerFrom = player and playerTo = nil. All I had to do is do this:

FilterStringAsync("suck", player, player)