no idea whats this is all  about ... see log 

I'm not a developer, but from what I can glean from LCPDFR.log, it seems that the game called (set a value to, referenced, etc) an object (ped, car, etc) that the game had removed, but the object's signature was still in memory thus allowing LCPDFR to call it. Logic dictates that this is caused by the game not having enough memory to run properly. Try uninstalling any high-poly cars (pretty much all ELS models and some newer non-ELS ones) and running again to see if it fixes anything.

Edited January 4, 201511 yr by Figgis302

Somewhere close to what Figgis302 explained, though I can add a check in the code so it won't crash LCPDFR the next time at this particular point. Thanks for reporting.

I had the same issue. I managed to fix this by going to my gta iv directory then into the LCPDFR folder and running the LCPDFR Diagnostics Tool, i then clicked Configure Lcpdfr first response, now i checked the box that said "Preload all models". Hope this helps