Ugh, HappyCloud. That install method causes so many issues that I really wish Turbine would get rid of it.
I would have to say download the full installer using either Pando Media Booster from this site or Steam.
[center][url=http://forums.lotro.com/showthread.php?18699-How-to-get-help-on-the-Tech-Forums-and-how-to-contact-Turbine][color=gold]How to get help on the Tech Forums and how to contact Turbine[/color][/url]
[color=green]Please reply to the topic or PM me if a solution I posted works for you: The more data I can gather the better I can help.[/color][/center]