when i tried to played solo the game crashed then an out of game console poped up and said this

War\zone\english\localized_nazi_zombie_ragnarok.ff'
Database: Assets Sync Finished
Loading fastfile nazi_zombie_ragnarok_patch
Database: Assets Sync Started
WARNING: Could not find zone 'C:\Program Files (x86)\Steam\steamapps\common\Call of Duty World at
War\zone\english\nazi_zombie_ragnarok_patch.ff'
Loading fastfile 'default'
used 0.72 MB memory in DB alloc
Database: Assets Sync Finished
Loading fastfile nazi_zombie_ragnarok
Loading fastfile 'nazi_zombie_ragnarok'
Error: Need 17538575 more bytes of 'main' physical ram for alloc to succeed
Out of memory: filename 'C:\cod5\cod\codsrc\src\universal\physicalmemory.cpp', line 966
 - R_Cinematic_BeginLostDevice()...
DB_BeginRecoverLostDevice()...


Unhandled exception caught