Finding addons crashing player's games at Sending Client Info...

So I have a couple of servers and am frequently getting players telling me that they crash on sending client info from time to time. I thought this was the player’s computers at first but now I realize that it is most likely an addon on the server. Are there any tips you guys have for finding the addon that might be causing the problem. I do not want to just do trial and error for removing a bunch and seeing if it works because the servers usually have over 70 players on it. Is there anything in the crash files that might help me because I really don’t know where to look.