Have been playing without any problems. Doing the level 20 story quest was just walking around then got this error.

Code:
Faulting application name: ffxiv.exe, version: 1.0.0.0, time stamp: 0x5215cce1
Faulting module name: ffxiv.exe, version: 1.0.0.0, time stamp: 0x5215cce1
Exception code: 0x40000015
Fault offset: 0x0085e911
Faulting process id: 0x1910
Faulting application start time: 0x01cea1b23f2684b0
Faulting application path: D:\SquareEnix\FINAL FANTASY XIV - A Realm Reborn\game\ffxiv.exe
Faulting module path: D:\SquareEnix\FINAL FANTASY XIV - A Realm Reborn\game\ffxiv.exe
Report Id: 4f9975c0-0dd6-11e3-9ab5-02004e435049
Fault bucket 3787022767, type 1
Event Name: APPCRASH
Response: Not available
Cab Id: 0

Problem signature:
P1: ffxiv.exe
P2: 1.0.0.0
P3: 5215cce1
P4: ffxiv.exe
P5: 1.0.0.0
P6: 5215cce1
P7: 40000015
P8: 0085e911
P9:
P10:

Of course since there are login issues I can't get back in.

I'm not sure what other information I can provide.

FYI I have been running the game since yesterday without this type of error.