Mionikoi

So I'm trying to play Attack of the B-Team and my launcher won't launch the game. Help please? So my problem is, I hit the Technic Icon it opens to the launcher screen, I hit play and it pauses to load. The launcher finishes and disapears for a few seconds and then it is back again and nothing happens. What do I do? Note: I found out that the launcher will let me play Hexxit but Attack of the B-Team isn't responding.