The zone name provided is subject to a hold which disallows the creation of this zone

Hi everyone, I'm faced with a problem. When adding my domain I get this error message: “The zone name provided is subject to a hold which disallows the creation of this zone. “In the past, we had a host who managed our domain for us on cloudflare, but we no longer have contact with them. How can we solve this problem?

Thanks in advance!