Cars Problem with mod

[Sylwester77]

have a problem with the polonez that I downloaded here, after launching the game by the manager, this error pops up
Error might have something to do with:

AC\caravatar.cpp (1309): CarAvatar::initPhysics
AC\caravatar.cpp (896): CarAvatar::CarAvatar
AC\sim.cpp (1446): Sim::addCar
AC\racemanager.cpp (464): RaceManager::initOffline
AC\racemanager.cpp (178): RaceManager::loadSessions
AC\sim.cpp (320): Sim::Sim
AC\splashscreen.cpp (319): SplashScreen:ostRender
AC\game.cpp (181): Game::onIdle
AC\game.cpp (210): Game::run
AC\acs.cpp (477): wWinMain
f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c (618): __tmainCRTStartup
75E37D59 (KERNEL32): (filename not available): BaseThreadInitThunk