Crashing in The Verdant Fields

I zoned into the Cow Event and immediately crashed to desktop. Upon trying to log into the same character, i continue to crash to desktop with the following error.

This application has encountered a critical error:

ERROR #132 (0x85100084) Fatal Exception
Program: C:\Users\neomi\Downloads\Wrath of the Lich King 3.3.5a\Wow.exe
Exception: 0xC0000005 (ACCESS_VIOLATION) at 0023:00524868

The instruction at "0x00524868" referenced memory at "0x00000018".
The memory could not be "read".