If you already have a Gamer Launch account connect your Facebook account on your user profile first before using Facebook connect to login. Otherwise you may end up with a new account.
Update to the game.
The LOTRO Game Servers will be offline for maintenance on Tuesday, May 15th from 8:30 AM to 12:00 PM Eastern (-4 GMT).
Thanks for your patience, and we'll see you back in the game soon!