game suddenly closing

r3dlog last part
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000991.240| SetHomeDir: Levels\WZ_Frosty000991.240| We have 3813 MB texture memory000991.241| r3dFile: can't open levels/wz_frosty/loadingscreen2.dds000991.405| r3dFile: can't open Levels\WZ_Frosty/wind.cfg000991.405| Loading 'Levels\WZ_Frosty/LevelSettings.xml'000991.437| Loading sky texture: Data/SkyDome/wz_daynew_01_d.dds000991.554| Unloaded 0.0 MB STATIC decal textures000991.554| Unloaded 0.8 MB DYNAMIC decal textures000991.554| Loading decal library Data\Decals\library.xml.000991.555| Loading decal library Levels\WZ_Frosty\decals.xml.000991.555| Loaded 0.0 MB STATIC decal textures000991.606| Loaded 0.8 MB DYNAMIC decal textures000991.608| TERRAIN: LOADING Levels\WZ_Frosty\TERRAIN000991.692| TERRAIN3: Finished reading script file000991.695| Creating dynamic buffer of size 0.50 MB000991.723| TERRAIN: LOADED000991.725| LoadLevel_MatLibs...000992.272| Loading 'Levels\WZ_Frosty\collections\collections.xml'000992.272| r3dFile: can't open Levels\WZ_Frosty\collections\elements.bin000992.272| COLLECTIONS: Could not open 'Levels\WZ_Frosty\collections\elements.bin'000992.272| CollectionsManager::Init: populating 0 objects... 000992.272| done in 0.00 seconds000993.992| World loaded000993.992| Total load time: 2.75000997.885| @@@ DUP Obj pointer: 0x0000997.885| ASSERT at file ..\GameEngine\gameobjects\GameObj.cpp, line 264: dup