S!
Found this in debug.txt "[0409/000529:ERROR:backend_impl.cc(930)] Critical error found -8". Still trying to locate where game stores it's own log files..I have logging on. Below part of the error message as I could not find logs.txt
"System.IO.DirectoryNoFoundException:Could not find a part of the path 'c:\program files (x86)\steam\steamapps\common\il-2 sturmovik cliffs of dover\cache\-5109237150473004265.jpg'.
at System.IO.__Error.WinIOError(Int32 error code, String maybefullPath)..."