I am using Fisks Superhero mod and trying to connect to my brothers lan world. Everytime i try, it says 'Loading terrain.." then "Shutting Down Internal Server..." then blinks to minecraft home screen, then it says "Quiting" and has a cancel button. This also happens when i save and quit from a world and try to go back in it. To stop it i need to reload my game, but i still cant join and the same thing happens. I only have Fisks Superhero mod in my mods folder, so does my brother. We are both on the same network also. Please help me out, thanks!