PlayerDataObjects returning error when I try to get the data out

Questions & Answers
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1

My total code can be found here: private Unity.Services.Lobbies.Models.Lobby hostLobby; private Unity.Se - Pastebin.com

I get a null reference error when ever I try to access the data in a PlayerDataObject.

private void ListPlayers()
{
    try
    {
        Debug.Log("Listing Players in " + joinedLobby.Name);
        //Debug.Log(joinedLobby.Players[0].Data.);
        foreach (Player player in joinedLobby.Players.ToArray())
        {
          Debug.Log(player.Data["playerName"].Value + " " + player.Id); <---
        }
    } catch (LobbyServiceException e)
    {
        Debug.LogError(e);
    }
}

I put the data in the player object with the GetPlayer() method:

private Player GetPlayer(string playerName)
{
    return new Player
    {
        Data = new Dictionary<string, PlayerDataObject>
        {
            { "playerName", new PlayerDataObject(PlayerDataObject.VisibilityOptions.Public, playerName) }
        }
    };
}

I have no idea what to do because I have never used DataObjects before now.
Any help would be greatly appreciated.