Board Thread:LotR Mod Technical Support/@comment-108.35.168.58-20170424031130/@comment-27200931-20170424033015

Do you use the vanilla launcher or another one like MultiMC and Magic Launcher? I'm not an expert at this but I believe the problem lies with Java. In my case, I set my Minecraft profile to use Javaw.exe found in this folder "C:\Program Files\Java\jre1.8.0_121\bin".

This part "jre1.8.0_121" may change according to the Java you have installed on your system. I believe the new Minecraft launcher comes with its own Java, but I suggest that you download the latest version available and use that one instead (don't forget to choose the right Java for your system, 64 or 32 bits).

Also, did you do anything to the game since the last time it worked?