BigGreen22

Ok so Im new to the Technic Launcher and I want to play attack of the b team so I go to load up and everything works fine. I make a world and start playing and it randomly crashes and brings the launcher page back up,so I go to load up again and it starts to load and begins opening the modded Minecraft and randomly closes and brings the launcher back up I try this multiple times until I restart the launcher and try again.This time it loads, I try to open my world and guess what, CRASH. So i repete closing it and re-opening it and delete my world and start a new one it loads fine. I start messing with NEI and close out of my invintory and it closes the pack and brings me back to the launcher page. Can anyone please help with my problem. I was really looking foreward to playing.