I'm sure it's nothing. I've probably just got some of my various Minecraft folders/versions crossed up. I'll delete it all and start fresh. Just haven't had time to dig into it. I was in single player, but No, not with this mod pack. Via the FG App
So I think I'm all set up now. Whenever it's back up and running, I'll see if I'm in. Right now I'm stuck on the logging in screen when I try to enter the server.