Tor has been banned in my country. How to revive the node?

Russia is supressing the ISPs to ban Tor exit nodes where possible.
To the OP @hatred: You could in the meantime consider - carefully - whether going Hybrid is an option. That means you expose your clearnet IP. If you’re more advanced, you could add a VPN relay and masquerade your clearnet IP.
Details can be found here, lmk if you need help.