stalker anomaly crashing when entering army warehouses Thread

I play Stalker Anomaly with the expedition mod installed and it always seems to crash when i try to enter army warehouses. I have already tried reinstalling the game several times but it keeps crashing. someone please help

this is the crash log:

FATAL ERROR

[error]Expression : <no expression>
[error]Function : CModelPool::Instance_Load
[error]File : ..\xrRender\ModelPool.cpp
[error]Line : 120
[error]Description : fatal error
[error]Arguments : Can't find model file 'actors\newmonolith\stalker_monolith_3_0_guns.ogf'.