Game crash on login

I have been playing the game fine all weekend/week until now. I was traveling across North Shroud when my game crashed out unexpectedly. Every time I log in, it instantly crashes. I don't even get to see my character or the game. In my event viewer, this is the error I'm getting every time. I've tried updating my video drivers, changing video settings, copying my friend's ffxiv.exe, and restarting my computer. What can be done to fix this?? Thanks! :D

Faulting application name: ffxiv.exe, version: 1.0.0.0, time stamp: 0x521be282
Faulting module name: ffxiv.exe, version: 1.0.0.0, time stamp: 0x521be282
Exception code: 0xc0000005
Fault offset: 0x0085a7c0
Faulting process id: 0x105c
Faulting application start time: 0x01cea4931f88a644
Faulting application path: K:\FFXIV - ARR\SquareEnix\FINAL FANTASY XIV - A Realm Reborn\game\ffxiv.exe
Faulting module path: K:\FFXIV - ARR\SquareEnix\FINAL FANTASY XIV - A Realm Reborn\game\ffxiv.exe
Report Id: 7a1dcab8-1086-11e3-bfae-f745ea2236b1
Faulting package full name:
Faulting package-relative application ID: