Sorry for frequent disturbing. I realize that iptables package has iptables-nft and nftlibs to work normally, and nftables is a dependency recommended to install with iptables. So my problem is solved, in my case, I need to install *iptables package* and use *iptables-nft* from this package.
This bug is not actually related with *nftables package*. I want to say sorry again. I want to express my sincere appreciation for your hard work. Zhian Chen (galiren)
