SSL/TLS certificate provisioning fails — "certificate parameter is required when updating an existing certificate"

I’m unable to provision a Let’s Encrypt SSL certificate for my custom domain.

Netlify site name: heartfelt-peony-905929.netlify.app
Custom domain: pronos.bregand.net

DNS verification passes successfully (“DNS verification was successful”), but clicking “Provision certificate” returns the error:
“certificate parameter is required when updating an existing certificate”

DNS records are correctly configured (CNAME pointing to heartfelt-peony-905929.netlify.app), and there is no CAA record blocking Let’s Encrypt on the domain.

It appears there may be a stale or stuck certificate record on the backend for this site, blocking a fresh provisioning attempt. Could you please manually reset/clear the SSL certificate state for this site so I can provision a new Let’s Encrypt certificate?

Thank you for your help.