Game Crashes When Loading Adventure Map

When I try to open up "Eronev 2: The Soul Cauldron" (a map made for minecraft 1.7) The game crashes. I have attached the crash log with my report. Here is a link to the map.

http://www.minecraftforum.net/topic/1479332-17-eronev-2-the-soul-cauldron-advctm-have-you-challenged-the-cauldron/