Direwolf20 world crashes before even loading.

[SFDub]

My Direwolf20 world will crash every time I try to load it. I was messing around with Mystcraft, and made roughly 50+ worlds (Trying to get dense ore) and my game crashed, and it now will crash everytime I try to load the world.

Crash report: http://pastebin.com/4pGbukAk

 

[aanthony3]

Try deleting your player.dat file, you'll loose all your items but it should place you at your original spawn, which should break the endless loop sometimes caused when trying to generate marble.

 

[SFDub]

Try deleting your player.dat file, you'll loose all your items but it should place you at your original spawn, which should break the endless loop sometimes caused when trying to generate marble.

Tried, didn't work. Tried deleting all of the Mystcraft worlds I created to see if that would fix it, still didn't work.