Install libnfnetlink0 by entering the following commands in the terminal:
sudo apt update sudo apt install libnfnetlink0
Netfilter netlink library
libnfnetlink is the low-level library for netfilter related kernel/userspace communication. It provides a generic messaging infrastructure for in-kernel netfilter subsystems (such as nfnetlink_log, nfnetlink_queue, nfnetlink_conntrack) and their respective users and/or management tools in userspace.