Fixed sysctl: cannot stat /proc/sys/net/bridge/bridge-nf-call-iptables:

sysctl: cannot stat /proc/sys/net/bridge/bridge-nf-call-iptables:

No such file or directory sysctl: cannot stat /proc/sys/net/bridge/bridge-nf-call-ip6tables: No such file or directory

solution:

modprobe br_netfilter