HELP i keep having the game crashes like this every 2 -3 days

Hey guys the game keeps crashin every 2-3 days giving me same type of error :
This application has encountered a critical error:
Not enough memory resources are available to process this command.
Program : C:/Wow/World Of Warcraft Wrath Of The Lich King 3.3.5 enUS//Wow.exe
File : ./DBCache.cpp
Line : 608
Requested 3437764181 bytes of memory.
Press OK to terminate the application.

but the thing is that after i delete the cache folder the game runs again but 2 days later this same bug , and i run the game on totally new MSI Katana a15 .
if somebody can help me i will be very gratefull , thanks <3

Try Large Address Aware, or 4GB patch that allows 32bit client use more than 2GB RAM.