I have used LCPD:FR almost every day. It has worked fine until just very recently.

I start up GTA IV, I press play, and it goes to the loading screens. After it is done showing the loading pictures, it has the Loading (mission name here) thing in the bottom right corner, but the sound starts lagging and it crashes, displaying the error message "Grand Theft Auto IV has stopped working"

I fully uninstalled LCPD:FR and the game started working fine, so it is definitely the issue. I reinstalled it, 1.0, 1.0a, and 1.0b and it stops working again, with the same message. I looked at the log and, I can't understand it but it looks to me that there's something going wrong. It may also be worth noting that the "Grand Theft Auto IV has stopped working" happens to me VERY often, almost always during gameplay (but it HAS happened on startup, but never more than once in a row)

 

Here are my logs: https://www.dropbox.com/s/7k7cwjskodkrnfa/LCPDFR.log

 

I tried using the diagnostics tool and it doesn't work properly, I can't seem to keep it running. I was unable to get the Diagnostics log, the entire thing just crashes when I try. It does however say that my LCPD:FR is fine.

 

Any help is appreciated!

 

Thank you in advance,

~Zelyth

same thing happens to me. When the game loads, Niko is on screen for a good few seconds before the game crashes.

I have reinstalled my game and discovered that it was an issue with a car I put into the game. It was not an LCPD:FR error. If you are having this issue, try downloading a fresh  default vehicles.img from the internet, they are quite common.

Or you make backups before modding, which is the recommended way to do it. Downloading from the internet is borderline piracy.