JasFarNumba

When I attempt to use the Voltz mod pack, Voltz will bring up the start screen, I can select player modes and create world. However, when I tell it to create world, all that happens is the brown background. When I task manager the program, I get the "Java Platform SE binary is not responding" Error. This only happens with the Voltz mod pack, all of the other mod packs available in the technic launcher work as normal. Does anyone have any suggestions??