My initial advice would be to perhaps cut down the mods a little, as 6gig RAM isnt a whole lot to work with, especially with all those mods installed. Try uninstalling any car packs, you have, and only modding police vehicles for the time being, and maybe get rid of some of those scripts you're using, as they may be conflicting somehow.
The logs you've posted don't seem to show anything out of the ordinary, as far as I can tell.