What are Cloudflare settings that might be causing a 522 error?

Cloudflare settings that can contribute to 522 errors include: 1) `flare-http-timeout` (increase this if the origin server is slow); 2) `flare-max-connections` (ensure it's high enough to handle the traffic); 3) `proxy-cache-timeout` (if caching is involved, consider optimizing it); 4) `origin-https-only` (ensure the origin server is serving HTTPS); 5) `worker-max-connections` (If using a worker, make sure it's configured properly). Experiment with adjusting these settings.