I'm not sure how PLauncher affects Lunia, but if it's something that came with Lunia, try reinstalling. Somehow I doubt Lunia requires an emulator to run. Everything Lunia needs should come with it.
Edit: Here's someone's suggestion for Soldier Front. If Lunia does require it, it's probably the ijji loader that opens when you click play live and before the patcher opens. There's a thread about how to bypass that (I think it bypasses it. Or maybe it still opens it. Who knows.) by executing the LuniaClient with RUNGAME as a parameter, but reinstalling is still your best bet.