Cant open overworld

[TheUnkownPlayer]

Minecraft Version = 1.6.4

Forge Version = 9.11.1.965

Galacticraft Version = 2.0.12.10.10

Detailed Description = When trying to open the overworld it takes me straight back to the menu

Full Forge Log = http://www.mediafire.com/view/vv04lljpv8o7lpc/Galacticraft_bug.txt