[FLOOR_MASTER]

I used your config file on my server and the plugin worked properly, skipping the appropriate maps since I was the only one on the server, so unfortunately the particular game settings you're using aren't causing the issue. I have a few more questions to help me reproduce the error you're receiving:

1) Are you running a Windows or Linux server?
2) Did you load the plugin in the middle of some other map that wasn't the first map (which is perfectly fine) or did you restart the server?
3) Could you attach errors_20080323.log to your reply? It should be located in addons/sourcemod/logs in your server's insurgency directory. (Click on "Go Advanced" to attach files)