ClearOS v6.7: Last Update made Firewall Panic

Dear All,

I have been using this machine since 2014 and yesterday this machine unable to connect to internet. Users di LAN unable to browse internet. I see there was content filter and antivirus update on 06.00 AM and made firewall panic. I have SSH console via putty and try to #service firewall restart --- but still no luck. Firewall failed to start.

How can I resolve this problem. What step to I have to do beside check system logs and message logs?
System only contain : Web Proxy and content filter. Also there is egress and custom firewall.

I think I want to reset the system by uninstall egress firewall, webproxy and content filter module, how to do that?
I have no reference that name the module is?
#yum webproxy remove -- something like that.
#yum egress remove
#yum contentfilter remove

Any information is appreciated.

Regards,
Isal