I'll look at have an exception for the useless Virtuozzo kernels (their iptables implementation is dire) to use the old state module and release a new version shortly.
I can't get CSF 5.76 to start on a VPS. Starting CSF gives the error: iptables: Unknown error 18446744073709551615 ACCEPT all opt -- in eth0 out * 0.0.0.0/0 -> 0.0.0.0/0 ctstate RELATED,ESTABLISHED Error: iptables command [/sbin/iptables -v -A INPUT -i eth0 -m conntrack --ctstate ESTABLISHED,RELATE...
It appears that this is a restriction with CageFS on CloudLinux (as the creation and modification functions need to run under the user account) and we do not have a workaround for this.