The “blocklist ru” means that censors blocked your bridge IP in Russia, and Russian users can’t use your bridge to connect to the Tor network. Maybe your bridge will still see some users from Russia, where the Internet Service Providers didn’t deploy TSPU devices (yet).
You can find more information about Censorship in Russia here: Some ISPs are blocking Tor, our blog, and this OONI report Russia blocks Tor - 2021.
Yes, check with your ISP if they can change your IPv4.