The best way really, is to enable and disable every add-on one by one (loading times will be short so it wont take that long). I would start with script/server/event mods, then weapons/items then vehicles. I doupt bricks/lights things like that could affect anything like this.
Also, start with events or scripts that affect the default burnplayer event. It could be that without events.
You could also run all your add-ons and upload your console.log (maybe with and without trace(1); ).