What are the last lines in your EC.log in element/logs after crash ?
[18:54:07.005] <!> CECGameSession::DoOvertimeCheck(bStart=false, iCheckID=0, dwTime=0)
[18:54:07.646] <!> CECGameSession::OnPrtcRoleListRe, empty rolelist
[18:54:09.896] <!> CECScene::LoadBezierNavigate, Failed to open file maps\a10\navigate.dat
[18:54:09.896] <!> CECWorld::LoadSceneObjects, Failed to load scene file maps\a10\navigate.dat
[18:54:09.927] <!> CECWorld::LoadWorld: File operation error. (line: 613)