Board Thread:LotR Mod Technical Support/@comment-30409692-20161211154646/@comment-27219153-20161215230726

WillyTheWyvern wrote: I think it might be because I changed my MC username...

 Possibly, try copying your .minecraft elsewhere and then delete your .minecraft. Then add everything you need to in order to launch LOTR (you could just not delete those parts of you .minecraft).