Not a problem mate I'm happy to try to help you as much as I possibly can. It could be possible that you may have installed a few mods/scripts which can influence game crashes, most of the time it is not LCPDFR related however the LCDPFR.Loader.Loader can be an indicator a mod/script has caused your crash. I will definitely consider reinstalling LCDPFR completely, before any implementation of scripts/mods have you saved a previous version of your GTA IV directory before any mods, including LCDPFR have been installed? this will prevent you having to reinstall the entire game again. But before doing that it is best to see exactly what script/mod is causing the crash.
Will you provide a list of the scripts you have used? if you can try uninstalling them one by one to then try run the game. Eventually you may be able to identify which one is causing the issue, simply remove it and all should be as it normally would be.