My IP has been banned

Hello, I am a user that needs to access some online content, since 2 weeks there is a page that says that my ip has been banned for self protection, but I have a local gateway because I am in a building with fiber so how can I access this website? Can I request an IP unban on cloudflare or is the owner of the website that needs to unban the ip?

Thanks

You need to contact the site owner, sorry.