Can anyone help when I try to find a player's userid, I get an error (look below)?

I'm trying to get a textbox that finds a player's userid from entering their name. Script:

lua
local username = game.ReplicatedStorage.Value.Value
game.ReplicatedStorage.RemoteEvent.OnServerEvent:Connect(function()
    local userID = game.Players:GetUserIdFromNameAsync(username)
    wait(5)
    game.Workspace.R15Loader.Configuration.userId.Value = userID
end)

I keep getting this output: Players:GetUserIdFromName() failed because the user does not exist.

Before I put in local username and the remote event, where it says (username), I put ("somerandomuser") and it would load, but now it won't.

Shufle i already answered this on discord

the first param is the player and the second is ur your username arg which you pass

game.ReplicatedStorage.RemoteEvent.OnServerEvent:Connect(function(player, username)
    local userID = game.Players:GetUserIdFromNameAsync(username)
    wait(5)
    game.Workspace.R15Loader.Configuration.userId.Value = userID
end)