Board Thread:LotR Mod Technical Support/@comment-81.104.19.74-20151228215005/@comment-25612015-20151229081414

That's an issue loading the LOTR mod, with a "class not found". Maybe your download of the mod is incomplete or it is damaged in some ways?

Although that was not the issue at this step, you also have too little available memory. Try increasing -Xmx to something bigger than 1G.