This is indeed because of the worldwide cloudflare outage. Our servers are up, but we can’t switch the DNS over because the Cloudflare dashboard isn’t operational
SSL/TLS: You will likely lose your Cloudflare-provided SSL certificate. Your site will only work if your origin server has its own valid certificate.
Security & Performance: You will lose the performance benefits (caching, minification, global edge network) and security protections (DDoS mitigation, WAF) that Cloudflare provides.
This will also reveal your backend internal IP addresses. Anyone can find permanent logs of public IP addresses used by even obscure domain names, so potential adversaries don’t necessarily have to be paying attention at the exact right time to find it.