A certificate parameter is required when updating an existing certificate, please reset SSL state

Hi Netlify Support,

My Netlify site is: comfy-choux-2f74c5.netlify.app
Custom domain: ruiosteo.ch

DNS verification was successful for my custom domain, but when I click “Provision certificate” I get the error:

“certificate parameter is required when updating an existing certificate”

Could you please reset the SSL/certificate state for my site so I can provision a fresh Let’s Encrypt certificate?

Thank you!