NAT/rules public ip system unstable. need help

[casper001]

hello people,

i configure pfsense firewall everything is just perfect. firewall proxy snort on one machine. when i want to switch to production network and change wan address from lan class to public, after that ysytem became unstable and not booting at all. I am not bsd expert.

this is an error mesaage:
warning: cannot use a scalar value as an array in /etc/inc/config.lib.inc on line 425

thanks ;)