root@vm01:~# ufw status
ERROR: problem running iptables: modprobe: ERROR: ../libkmod/libkmod.c:586 kmod_search_moddep() could not open moddep file '/lib/modules/4.2.0-16-generic/modules.dep.bin'
modprobe: FATAL: Module ip_tables not found in directory /lib/modules/4.2.0-16-generic
iptables v1.6.0: can't initialize iptables table `filter': Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.